Sedeciquadringentillion

A sedeciquadringentillion is equal to \(10^{1251}\) in the short scale and \(10^{2496}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 416th -illion number.
In the long scale, \(10^{1251}\) is called octoducentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1251}\) (exact) 	\(1\times10^{1251}\) (exact)
Arrow notation 	\(10\uparrow 1251\) (exact) 	\(10\uparrow 1251\) (exact)
Steinhaus-Moser Notation 	468[3] 	469[3]
Chained arrow notation 	\(10\rightarrow 1251\) (exact) 	\(10\rightarrow 1251\) (exact)
Taro's multivariable Ackermann function	A(3,4152) 	A(3,4153)
BEAF & Bird's array notation 	{10,1251} (exact) 	{10,1251} (exact)
Hyper-E notation 	E1251 (exact) 	E1251 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(8)\) 	\(s(1)^3(\lambda x.x+1)(9)\)
m(n) map 	m(1)(468) 	m(1)(469)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(4143)\) 	\(f_2(4144)\)
Hardy hierarchy 	\(H_{\omega^2}(4143)\) 	\(H_{\omega^2}(4144)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 2+\omega 5+1}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 2+\omega 5+1}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2496}\) (exact) 	\(1\times10^{2496}\) (exact)
Arrow notation 	\(10\uparrow 2496\) (exact) 	\(10\uparrow 2496\) (exact)
Steinhaus-Moser Notation 	851[3] 	852[3]
Chained arrow notation 	\(10\rightarrow 2496\) (exact) 	\(10\rightarrow 2496\) (exact)
Taro's multivariable Ackermann function	A(3,8288) 	A(3,8289)
BEAF & Bird's array notation 	{10,2496} (exact) 	{10,2496} (exact)
Hyper-E notation 	E2496 (exact) 	E2496 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(9)\) 	\(s(1)^3(\lambda x.x+1)(10)\)
m(n) map 	m(1)(851) 	m(1)(852)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8278)\) 	\(f_2(8279)\)
Hardy hierarchy 	\(H_{\omega^2}(8278)\) 	\(H_{\omega^2}(8279)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 4+\omega 9+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 4+\omega 9+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers