Sesexagintacentillion

A sesexagintacentillion is equal to \(10^{501}\) in the short scale and \(10^{996}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 166th -illion number.
In the long scale, \(10^{501}\) is called tresoctogintilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{501}\) 	\(1\times10^{501}\)
Arrow notation 	\(10\uparrow 501\) 	\(10\uparrow 501\)
Taro's multivariable Ackermann function	A(3,1661) 	A(3,1662)
BEAF 	{10,501} 	{10,501}
Hyper-E notation 	E501 	E501
Fast-growing hierarchy 	\(f_2(1653)\) 	\(f_2(1654)\)
Hardy hierarchy 	\(H_{\omega^2}(1653)\)	\(H_{\omega^2}(1654)\)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{996}\) 	\(1\times10^{996}\)
Arrow notation 	\(10\uparrow 996\) 	\(10\uparrow 996\)
Taro's multivariable Ackermann function	A(3,3305) 	A(3,3306)
BEAF 	{10,996} 	{10,996}
Hyper-E notation 	E996 	E996
Fast-growing hierarchy 	\(f_2(3296)\) 	\(f_2(3297)\)
Hardy hierarchy 	\(H_{\omega^2}(3296)\)	\(H_{\omega^2}(3297)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers