Perfect Square
66536913140236148481 is a perfect square (8157016191 × 8157016191)
66536913140236148481 is a perfect square (8157016191 × 8157016191)
66536913140236148481 is odd
Previous odd number is 66536913140236148479
Next odd number is 66536913140236148483
111001101101100010100110011111100100101110110010111101111100000001
294569614288219484273511909032597413604434070470133895568641