Perfect Square
66536913303376472401 is a perfect square (8157016201 × 8157016201)
66536913303376472401 is a perfect square (8157016201 × 8157016201)
66536913303376472401 is odd
Previous odd number is 66536913303376472399
Next odd number is 66536913303376472403
111001101101100010100110100001111100101010101101111010100101010001
294569616454964835467311293607140645292769448884409438697201