85880165 has 32 divisors (see below), whose sum is σ = 122722560. Its totient is φ = 56448000.

The previous prime is 85880161. The next prime is 85880191. The reversal of 85880165 is 56108858.

It is not a de Polignac number, because 85880165 - 2² = 85880161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85880161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213965 + ... + 214365.

It is an arithmetic number, because the mean of its divisors is an integer number (3835080).

Almost surely, 2^85880165 is an apocalyptic number.

It is an amenable number.

85880165 is a deficient number, since it is larger than the sum of its proper divisors (36842395).

85880165 is a wasteful number, since it uses less digits than its factorization.

85880165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 85880165 is about 9267.1551729751. The cubic root of 85880165 is about 441.1953806779.

The spelling of 85880165 in words is "eighty-five million, eight hundred eighty thousand, one hundred sixty-five".