Icosekillillion

The icosekillillion is equal to \(10^{3\left(10^{60,000}\right)+3}\).Sbiis Saibian's large numbers site The term was coined by Sbiis Saibian.
==Approximations==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow60000)\) 	\(1000\uparrow(1+10\uparrow60000)\)
Down-arrow notation 	\(1000\downarrow\downarrow20001\) 	\(658\downarrow\downarrow21291\)
Steinhaus-Moser Notation 	5[3][3][3] 	6[3][3][3]
Copy notation 	2[2[60001]] 	3[3[60001]]
H* function 	H(H(19999)) 	H(H(19999))
Taro's multivariable Ackermann function	A(3,A(3,199316)) 	A(3,A(3,199317))
Pound-Star Notation 	#*((1))*((39))*85 	#*((1))*((40))*85
BEAF 	{1000,1+{10,60000}} 	{1000,1+{10,60000}}
Hyper-E notation 	\(\textrm E(3+3 \textrm{E}60000)\) 	\(\textrm E(3+3 \textrm{E}60000)\)
Bashicu matrix system 	(0)(1)[446] 	(0)(1)[447]
Hyperfactorial array notation 	((7!)!)! 	((8!)!)!
Fast-growing hierarchy 	\(f_2^3(13)\) 	\(f_2^3(14)\)
Hardy hierarchy 	\(H_{\omega^23}(13)\) 	\(H_{\omega^23}(14)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega^46}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega^46}3+3}}(10)\)
==Sources==
Category: Tier 3 -illion numbers
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Illion
Category:Class 3
Category:Upper class 3