Perfect Square
999999999992000000000023999999999968000000000016 is a perfect square (999999999996000000000004 × 999999999996000000000004)
999999999992000000000023999999999968000000000016 is a perfect square (999999999996000000000004 × 999999999996000000000004)
10101111 00101001 10001101 00000101 00001000 00111110 11010111 01100010 10111000 00111100 01010010 10110000 10000000 01000111 00100000 10101100 10000011 01011110 00000000 00010000
999999999992000000000023999999999968000000000016 is even
Previous even number is 999999999992000000000023999999999968000000000014
Next even number is 999999999992000000000023999999999968000000000018
999999999976000000000263999999998240000000007919999999974656000000059135999999898624000000126719999999887360000000067583999999975424000000004096
999999999984000000000111999999999552000000001119999999998208000000001791999999998976000000000256