42657316165 has 32 divisors (see below), whose sum is σ = 52632425952. Its totient is φ = 33177600000.

The previous prime is 42657316159. The next prime is 42657316189. The reversal of 42657316165 is 56161375624.

It can be written as a sum of positive squares in 16 ways, for example, as 17287516324 + 25369799841 = 131482^2 + 159279^2 .

It is not a de Polignac number, because 42657316165 - 2³⁵ = 8297577797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35517565 + ... + 35518765.

It is an arithmetic number, because the mean of its divisors is an integer number (1644763311).

Almost surely, 2^42657316165 is an apocalyptic number.

It is an amenable number.

42657316165 is a deficient number, since it is larger than the sum of its proper divisors (9975109787).

42657316165 is a wasteful number, since it uses less digits than its factorization.

42657316165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521.

The product of its digits is 907200, while the sum is 46.

The spelling of 42657316165 in words is "forty-two billion, six hundred fifty-seven million, three hundred sixteen thousand, one hundred sixty-five".