Perfect Square
666998747176673568539582969992694879841023377225 is a perfect square (816699912560711352338915 × 816699912560711352338915)
666998747176673568539582969992694879841023377225 is a perfect square (816699912560711352338915 × 816699912560711352338915)
666998747176673568539582969992694879841023377225 is odd
Previous odd number is 666998747176673568539582969992694879841023377223
Next odd number is 666998747176673568539582969992694879841023377227
111010011010101010000100001110001000111100000001011000011110111110100010100011010001011001111010000000011100011011000111010100101110010111001110011111101001001
296739290901190081876419156803830144761787206936764001434926796056551250063034300053804633928542396040585209939552154810612773998165845468265625
444887328735252106719054471595842889386998761833393882938379785825528803138405782588944648700625