5644160657 has 2 divisors, whose sum is σ = 5644160658. Its totient is φ = 5644160656.

The previous prime is 5644160617. The next prime is 5644160707. The reversal of 5644160657 is 7560614465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4620736576 + 1023424081 = 67976^2 + 31991^2 .

It is a cyclic number.

It is not a de Polignac number, because 5644160657 - 2⁶ = 5644160593 is a prime.

It is not a weakly prime, because it can be changed into another prime (5644160617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822080328 + 2822080329.

It is an arithmetic number, because the mean of its divisors is an integer number (2822080329).

Almost surely, 2^5644160657 is an apocalyptic number.

It is an amenable number.

5644160657 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644160657 is an equidigital number, since it uses as much as digits as its factorization.

5644160657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 5644160657 is about 75127.6291187204. The cubic root of 5644160657 is about 1780.4636944760.

The spelling of 5644160657 in words is "five billion, six hundred forty-four million, one hundred sixty thousand, six hundred fifty-seven".