Ultra Behemoth

About Ultra Behemoth
Ultra Behemoth is a number made by Jonah Nichols, or XYZeed, and it is equal to 10^^^10^^10^1500. You can also write it as {10,{10,10^1500,2},3}. If you want to say it out loud, it is ten pentated to ten tetrated to novemnonagintaquadringentillion. Not much else is known about it.