What is the next number in this sequence: 4; 16; 256; 65,536; ?

Answer 1

The sequence is developed as follows:
. 4
. 4*4 = 16
. 16*16 = 256
. 256*256 = 65,536
. 65,536* 65,536 = 4294,967,296 (this is the number)

Answer 2

the answer will be **********