Perfect Square
665043931172094049 is a perfect square (815502257 × 815502257)
665043931172094049 is a perfect square (815502257 × 815502257)
665043931172094049 is odd
Previous odd number is 665043931172094047
Next odd number is 665043931172094051
1001 0011 1010 1011 0101 1110 1110 1000 1101 1000 1010 1100 0000 0110 0001