Perfect Square
198988661898700901278515216 is a perfect square (14106334105596 × 14106334105596)
198988661898700901278515216 is a perfect square (14106334105596 × 14106334105596)
10100100 10011001 01111100 11111001 11111101 10111001 00000110 00111000 10111011 10000000 00010000
198988661898700901278515216 is even
Previous even number is 198988661898700901278515214
Next even number is 198988661898700901278515218
7879252076295772650827147724690904360767742872057107506712884774183211997597696