Perfect Square
16777215999999999999999999967232000000000000000000000016 is a perfect square (4095999999999999999999999996 × 4095999999999999999999999996)
16777215999999999999999999967232000000000000000000000016 is a perfect square (4095999999999999999999999996 × 4095999999999999999999999996)
10101111 00101001 10001101 00000101 00001110 01000011 10010101 11010110 10010110 01110000 10110000 11000001 10011110 00110011 00011000 10011001 10001001 00101111 10000000 00000000 00000000 00000000 00010000
16777215999999999999999999967232000000000000000000000016 is even
Previous even number is 16777215999999999999999999967232000000000000000000000014
Next even number is 16777215999999999999999999967232000000000000000000000018
4722366482869645213695999972329883889435672576000000067553994410557439999999999912039069777920000000000000064424509439999999999999999974834176000000000000000000004096
281474976710655999999999998900488372224000000000000001610612735999999999999999998951424000000000000000000000256
12745143202416207127264547026060317063061146111370000000000020