2^524288

2^524288 is the amount of 256 × 256 grayscale images possible. A 256 × 256 grayscale image would have 65,536 pixels.Stand-up Maths. How many different Youtube videos are possible? Accessed 2016-07-28.
So what you do is multiply 256 by 256 65,536 times which results in the final answer being 2^524,288 or 2.6 × 10^157,826 images possible. 
== Approximations ==
== Sources ==
Category:Class 2
Category:Numbers with 1000 to 1000000 digits
Category:Powers of 2
Category:Unnamed numbers
Category:Videos