85680165 has 8 divisors (see below), whose sum is σ = 137088288. Its totient is φ = 45696080.

The previous prime is 85680149. The next prime is 85680223. The reversal of 85680165 is 56108658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85680165 - 2⁴ = 85680149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2855991 + ... + 2856020.

It is an arithmetic number, because the mean of its divisors is an integer number (17136036).

Almost surely, 2^85680165 is an apocalyptic number.

It is an amenable number.

85680165 is a deficient number, since it is larger than the sum of its proper divisors (51408123).

85680165 is a wasteful number, since it uses less digits than its factorization.

85680165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712019.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 85680165 is about 9256.3580851218. The cubic root of 85680165 is about 440.8526253097.

The spelling of 85680165 in words is "eighty-five million, six hundred eighty thousand, one hundred sixty-five".