Perfect Square
665230237553891529 is a perfect square (815616477 × 815616477)
665230237553891529 is a perfect square (815616477 × 815616477)
665230237553891529 is odd
Previous odd number is 665230237553891527
Next odd number is 665230237553891531
1001 0011 1011 0101 1111 0110 0000 0110 0011 0011 1111 1001 1000 1100 1001