850085165 has 4 divisors (see below), whose sum is σ = 1020102204. Its totient is φ = 680068128.

The previous prime is 850085161. The next prime is 850085167. The reversal of 850085165 is 561580058.

850085165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 437060836 + 413024329 = 20906^2 + 20323^2 .

It is a cyclic number.

It is not a de Polignac number, because 850085165 - 2² = 850085161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850085161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85008512 + ... + 85008521.

It is an arithmetic number, because the mean of its divisors is an integer number (255025551).

Almost surely, 2^850085165 is an apocalyptic number.

It is an amenable number.

850085165 is a deficient number, since it is larger than the sum of its proper divisors (170017039).

850085165 is a wasteful number, since it uses less digits than its factorization.

850085165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170017038.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 850085165 is about 29156.2200053436. The cubic root of 850085165 is about 947.2998730311.

The spelling of 850085165 in words is "eight hundred fifty million, eighty-five thousand, one hundred sixty-five".