Perfect Square
1815491923577321535015625 is a perfect square (1347401916125 × 1347401916125)
1815491923577321535015625 is a perfect square (1347401916125 × 1347401916125)
1815491923577321535015625 is odd
Previous odd number is 1815491923577321535015623
Next odd number is 1815491923577321535015627
110000000011100100000001110101110101001010001110110101001110111111000101011001001
5983881213587594360767266171863012729481645813040335931593021392822265625