Perfect Square
999999999992000000000016 is a perfect square (999999999996 × 999999999996)
999999999992000000000016 is a perfect square (999999999996 × 999999999996)
999999999992000000000016 is even
Previous even number is 999999999992000000000014
Next even number is 999999999992000000000018
11010011 11000010 00011011 11001110 11000101 10100110 11111011 11010111 10000000 00010000
999999999976000000000239999999998720000000003839999999993856000000004096