Quintyllion is equal to \(10^{128}\) in the myriad system[1][2], or 10 squared 7 times.

Decimal expansion

100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Approximations

Notation Lower bound Upper bound
Scientific notation \(1\times 10^{128}\)
Arrow notation \(10\uparrow 128\)
Steinhaus-Moser Notation 69[3] 70[3]
Copy notation 9[128] 1[129]
Taro's multivariable Ackermann function A(3,422) A(3,423)
Pound-Star Notation #*(1,12,0,10,3,3,5,2)*9 #*(2,12,0,10,3,3,5,2)*9
BEAF {10,128}
Hyper-E notation E128
Bashicu matrix system (0)(0)(0)(0)(0)[10000]
Hyperfactorial array notation 84! 85!
Fast-growing hierarchy \(f_2(416)\) \(f_2(417)\)
Hardy hierarchy \(H_{\omega^2}(416)\) \(H_{\omega^2}(417)\)
Slow-growing hierarchy \(g_{\omega^{\omega^2+\omega2+8}}(10)\)

Sources

See also

Myriad System Numbers 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

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