Perfect Square
667095647957785225 is a perfect square (816759235 × 816759235)
667095647957785225 is a perfect square (816759235 × 816759235)
667095647957785225 is odd
Previous odd number is 667095647957785223
Next odd number is 667095647957785227
1001 0100 0001 1111 1111 1111 0101 0001 0111 1011 1011 1001 1010 1000 1001