Perfect Square
16777215999999999999999999983616000000000000000000000004 is a perfect square (4095999999999999999999999998 × 4095999999999999999999999998)
16777215999999999999999999983616000000000000000000000004 is a perfect square (4095999999999999999999999998 × 4095999999999999999999999998)
10101111 00101001 10001101 00000101 00001110 01000011 10010101 11010110 10010110 01110000 10110000 11110110 10001110 10111010 00001100 01001100 11000100 10010111 11000000 00000000 00000000 00000000 00000100
16777215999999999999999999983616000000000000000000000004 is even
Previous even number is 16777215999999999999999999983616000000000000000000000002
Next even number is 16777215999999999999999999983616000000000000000000000006
4722366482869645213695999986164941944717836288000000016888498602639359999999999989004883722240000000000000004026531839999999999999999999213568000000000000000000000064
281474976710655999999999999450244186112000000000000000402653183999999999999999999868928000000000000000000000016
12745143202416207127264547026075507272030463044574000000000004