Perfect Square
816686166936519515400625 is a perfect square (903706903225 × 903706903225)
816686166936519515400625 is a perfect square (903706903225 × 903706903225)
10101100 11110000 10100101 01010100 10010000 00000001 01110101 10111001 01101001 10110001
816686166936519515400625 is odd
Previous odd number is 816686166936519515400623
Next odd number is 816686166936519515400627
544710314017872570939103727101252644532101221033158861317482109619140625