Perfect Square
667095641423711361 is a perfect square (816759231 × 816759231)
667095641423711361 is a perfect square (816759231 × 816759231)
667095641423711361 is odd
Previous odd number is 667095641423711359
Next odd number is 667095641423711363
1001 0100 0001 1111 1111 1111 0011 1001 0010 0100 0101 1000 1100 1000 0001