Perfect Square
81683741267749451601 is a perfect square (9037905801 × 9037905801)
81683741267749451601 is a perfect square (9037905801 × 9037905801)
81683741267749451601 is odd
Previous odd number is 81683741267749451599
Next odd number is 81683741267749451603
1000110110110010110111100011110011101101101000111110011011101010001
545013002039062838288345876241693618021530147712885572034801