The meroogol is equal to (8/45)2*(152,587,890,625,000/7,623)3*128/5445 ~ 5.958672011281*1027, or around 5.96 octillion in the short scale.[1] It is the result of putting "googol" into Andre Joyce's (broken) merology system, a system intended to translate words into numbers such that "zero" becomes 0, "one" becomes 1, etc.[2] The term was coined by Googology Wiki user Cookiefonster.

Its prime factorization is 222 × 3-12 × 554 × 7-3 × 11-8.


The number's name comes from "merology" + googol.


Notation Lower bound Upper bound
Scientific notation \(5.958\times10^{27}\) \(5.959\times10^{27}\)
Arrow notation \(43\uparrow17\) \(29\uparrow19\)
Steinhaus-Moser Notation 21[3] 22[3]
Copy notation 5[28] 6[28]
Taro's multivariable Ackermann function A(3,89) A(3,90)
Pound-Star Notation #*(3,0,5,2)*6 #*(8,4,6)*8
BEAF {43,17} {29,19}
Hyper-E notation E[21]1#2 6E27
Bashicu matrix system (0)(0)(0)[2964] (0)(0)(0)[2965]
Hyperfactorial array notation 26! 27!
Fast-growing hierarchy \(f_2(85)\) \(f_2(86)\)
Hardy hierarchy \(H_{\omega^2}(85)\) \(H_{\omega^2}(86)\)
Slow-growing hierarchy \(g_{\omega^{17}5+\omega^{16}13}(39)\) \(g_{\omega^{\omega2+4}5}(11)\)


Community content is available under CC-BY-SA unless otherwise noted.