Perfect Square
666998747176673568539589503591995365531842088561 is a perfect square (816699912560711352338919 × 816699912560711352338919)
666998747176673568539589503591995365531842088561 is a perfect square (816699912560711352338919 × 816699912560711352338919)
666998747176673568539589503591995365531842088561 is odd
Previous odd number is 666998747176673568539589503591995365531842088559
Next odd number is 666998747176673568539589503591995365531842088563
111010011010101010000100001110001000111100000001011000011110111110100010100101111110010110010000010000110011010000001101011010100110100010110011000111001110001
296739290901190081876427876950449603534009339612581275419515470308318511327148677307113125350367284034677561663690512610774381530946262660902481
444887328735252106719063187400938846080141430666705564413006230589403278328919046694926567050721