Perfect Square
668143363241336161 is a perfect square (817400369 × 817400369)
668143363241336161 is a perfect square (817400369 × 817400369)
668143363241336161 is odd
Previous odd number is 668143363241336159
Next odd number is 668143363241336163
1001 0100 0101 1011 1000 1101 1001 0101 0001 0000 1000 1101 1101 0110 0001