Perfect Square
27803563416538863798321 is a perfect square (166744005639 × 166744005639)
27803563416538863798321 is a perfect square (166744005639 × 166744005639)
27803563416538863798321 is odd
Previous odd number is 27803563416538863798319
Next odd number is 27803563416538863798323
101111000110011101111110100000100011011111111101101000110101000100000110001
21493214911566916149896285386188424988189302568922876039152114230161