Perfect Square
664485132714180625 is a perfect square (815159575 × 815159575)
664485132714180625 is a perfect square (815159575 × 815159575)
664485132714180625 is odd
Previous odd number is 664485132714180623
Next odd number is 664485132714180627
1001 0011 1000 1011 1001 1011 0101 0010 0101 1111 0101 0000 0000 0001 0001