Perfect Square
664485175102479201 is a perfect square (815159601 × 815159601)
664485175102479201 is a perfect square (815159601 × 815159601)
664485175102479201 is odd
Previous odd number is 664485175102479199
Next odd number is 664485175102479203
1001 0011 1000 1011 1001 1011 1111 0000 0100 0111 1111 0001 1011 0110 0001