Perfect Square
667095667560007009 is a perfect square (816759247 × 816759247)
667095667560007009 is a perfect square (816759247 × 816759247)
667095667560007009 is odd
Previous odd number is 667095667560007007
Next odd number is 667095667560007011
1001 0100 0001 1111 1111 1111 1001 1010 1000 0001 1101 1100 0101 0110 0001