Perfect Square
665230240816357441 is a perfect square (815616479 × 815616479)
665230240816357441 is a perfect square (815616479 × 815616479)
665230240816357441 is odd
Previous odd number is 665230240816357439
Next odd number is 665230240816357443
1001 0011 1011 0101 1111 0110 0001 0010 0101 1011 0100 1110 0000 0100 0001