61632358922557 has 2 divisors, whose sum is σ = 61632358922558. Its totient is φ = 61632358922556.

The previous prime is 61632358922437. The next prime is 61632358922587. The reversal of 61632358922557 is 75522985323616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52094601440281 + 9537757482276 = 7217659^2 + 3088326^2 .

It is a cyclic number.

It is not a de Polignac number, because 61632358922557 - 2³⁹ = 61082603108669 is a prime.

It is a super-5 number, since 5×61632358922557⁵ (a number of 70 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61632358922587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30816179461278 + 30816179461279.

It is an arithmetic number, because the mean of its divisors is an integer number (30816179461279).

Almost surely, 2^{61632358922557} is an apocalyptic number.

It is an amenable number.

61632358922557 is a deficient number, since it is larger than the sum of its proper divisors (1).

61632358922557 is an equidigital number, since it uses as much as digits as its factorization.

61632358922557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296000, while the sum is 64.

The spelling of 61632358922557 in words is "sixty-one trillion, six hundred thirty-two billion, three hundred fifty-eight million, nine hundred twenty-two thousand, five hundred fifty-seven".