Perfect Square
6648398491450508284543730640501364293431589225 is a perfect square (81537712081284867779565 × 81537712081284867779565)
6648398491450508284543730640501364293431589225 is a perfect square (81537712081284867779565 × 81537712081284867779565)
6648398491450508284543730640501364293431589225 is odd
Previous odd number is 6648398491450508284543730640501364293431589223
Next odd number is 6648398491450508284543730640501364293431589227
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