Perfect Square
262144000000000000002048000000000000000004 is a perfect square (512000000000000000002 × 512000000000000000002)
262144000000000000002048000000000000000004 is a perfect square (512000000000000000002 × 512000000000000000002)
262144000000000000002048000000000000000004 is even
Previous even number is 262144000000000000002048000000000000000002
Next even number is 262144000000000000002048000000000000000006
18014398509481984000422212465065984000004123168604160000000021474836480000000000062914560000000000000098304000000000000000064
68719476736000000001073741824000000000006291456000000000000016384000000000000000016
110000001001011111001110011110111100100100000111000101011011001101100111011000000111110101100111010011101100100000000000000000000000000100