113465621657 has 2 divisors, whose sum is σ = 113465621658. Its totient is φ = 113465621656.

The previous prime is 113465621617. The next prime is 113465621663. The reversal of 113465621657 is 756126564311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111318318736 + 2147302921 = 333644^2 + 46339^2 .

It is a cyclic number.

It is not a de Polignac number, because 113465621657 - 2¹² = 113465617561 is a prime.

It is not a weakly prime, because it can be changed into another prime (113465621617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56732810828 + 56732810829.

It is an arithmetic number, because the mean of its divisors is an integer number (56732810829).

Almost surely, 2^113465621657 is an apocalyptic number.

It is an amenable number.

113465621657 is a deficient number, since it is larger than the sum of its proper divisors (1).

113465621657 is an equidigital number, since it uses as much as digits as its factorization.

113465621657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The spelling of 113465621657 in words is "one hundred thirteen billion, four hundred sixty-five million, six hundred twenty-one thousand, six hundred fifty-seven".