The tryllion is equal to \(10^{32}\) in the myriad system[1][2], or 10 squared 5 times. It is equal to 100 nonillion in the short scale and 100 quintillion in the long scale.

It is also called Gou (溝 in Chinese) or Kou ( こう in Japanese) in Japanese counting system and Chinese counting system.[3]

Full Number



Notation Lower bound Upper bound
Scientific notation \(1\times10^{32}\)
Arrow notation \(10\uparrow32\)
Steinhaus-Moser Notation 23[3] 24[3]
Copy notation 9[32] 1[33]
Taro's multivariable Ackermann function A(3,103) A(3,104)
Pound-Star Notation #*(7,1,2,3,1)*5 #*(8,3,3,2)*7
BEAF {10,32}
Hyper-E notation E32
Bashicu matrix system (0)(0)(0)[10000]
Hyperfactorial array notation 29! 30!
Fast-growing hierarchy \(f_2(99)\) \(f_2(100)\)
Hardy hierarchy \(H_{\omega^2}(99)\) \(H_{\omega^2}(100)\)
Slow-growing hierarchy \(g_{\omega^{\omega3+2}}(10)\)


  1. Myriad system on Wikipedia
  2. Large numbers By Robert Munafo
  3. 大数の名前

See also

myllion byllion tryllion quadryllion quintyllion
sextyllion septyllion octyllion nonyllion decyllion
undecyllion duodecyllion tredecyllion quattuordecyllion quindecyllion
sexdecyllion septdecyllion octodecyllion novemdecyllion vigintyllion
unvigintyllion duovigintyllion trevigintyllion quattuorvigintyllion quinvigintyllion
sexvigintyllion septemvigintyllion octovigintyllion novemvigintyllion trigintyllion
untrigintyllion duotrigintyllion tretrigintyllion quattuortrigintyllion quintrigintyllion
sextrigintyllion septtrigintyllion octotrigintyllion novemtrigintyllion quadragintyllion
quinquagintyllion sexagintyllion septuagintyllion octogintyllion nonagintyllion
centyllion ducentyllion trecentyllion quadringentyllion quingentyllion
sescentyllion septingentyllion octingentyllion nongentyllion millyllion
myryllion micryllion nanyllion picyllion femtyllion
attyllion zeptyllion yoctyllion googolyllion latinlatinlatinbyllionyllionyllionyllion
Googology in Asia

Fish numbers: Fish number 1 · Fish number 2 · Fish number 3 · Fish number 4 · Fish number 5 · Fish number 6 · Fish number 7
Mapping functions: S map · SS map · S(n) map · M(n) map · M(m,n) map
By Aeton: Okojo numbers · N-growing hierarchy
By BashicuHyudora: Primitive sequence number · Pair sequence number · Bashicu matrix system
By Jason: Irrational arrow notation · δOCF · δφ
By mrna: SSAN · S-σ
By Nayuta Ito: N primitive
By Yukito: Hyper primitive sequence system · Y sequence · Y function
Indian counting system: Lakh · Crore · Uppala
Chinese, Japanese and Korean counting system: Wan · Yi · Zhao · Jing · Gai · Zi · Rang · Gou · Jian · Zheng · Zai · Ji · Gougasha · Asougi · Nayuta · Fukashigi · Muryoutaisuu
Buddhist text: Tallakshana · Dvajagravati · Mahakathana · Asankhyeya · Dvajagranisamani · Vahanaprajnapti · Inga · Kuruta · Sarvanikshepa · Agrasara · Uttaraparamanurajahpravesa · Avatamsaka Sutra · Nirabhilapya nirabhilapya parivarta
Other: Taro's multivariable Ackermann function · Sushi Kokuu Hen

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