Perfect Square
262144000000000000000000 is a perfect square (512000000000 × 512000000000)
262144000000000000000000 is a perfect square (512000000000 × 512000000000)
262144000000000000000000 is even
Previous even number is 262143999999999999999998
Next even number is 262144000000000000000002
18014398509481984000000000000000000000000000000000000000000000000000000
110111100000101101101011001110100111011001000000000000000000000000000000000000