Perfect Square
999999999999999999999999992000000000000000000000000016 is a perfect square (999999999999999999999999996 × 999999999999999999999999996)
999999999999999999999999992000000000000000000000000016 is a perfect square (999999999999999999999999996 × 999999999999999999999999996)
999999999999999999999999992000000000000000000000000016 is even
Previous even number is 999999999999999999999999992000000000000000000000000014
Next even number is 999999999999999999999999992000000000000000000000000018
999999999999999999999999976000000000000000000000000239999999999999999999999998720000000000000000000000003839999999999999999999999993856000000000000000000000004096
999999999999999999999999984000000000000000000000000095999999999999999999999999744000000000000000000000000256
1010 0111 0000 1100 0011 1100 0100 0000 1010 0110 0100 1110 0110 1100 0101 0001 1001 1001 1001 0000 1000 1111 0001 1000 1100 1000 0100 1001 1000 1001 0011 1011 1011 1111 1110 0001 1000 1100 0000 0000 0000 0000 0000 0001 0000
516060742012311633050631441074306204461116737741430000000020