Perfect Square
66591916851347092834324663878525776456635495265881 is a perfect square (8160387052790271469203109 × 8160387052790271469203109)
66591916851347092834324663878525776456635495265881 is a perfect square (8160387052790271469203109 × 8160387052790271469203109)
66591916851347092834324663878525776456635495265881 is odd
Previous odd number is 66591916851347092834324663878525776456635495265879
Next odd number is 66591916851347092834324663878525776456635495265883
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