85165161 has 8 divisors (see below), whose sum is σ = 114371040. Its totient is φ = 56368032.

The previous prime is 85165151. The next prime is 85165187. The reversal of 85165161 is 16156158.

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

It is not a de Polignac number, because 85165161 - 2⁶ = 85165097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85165151) by changing a digit.

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, 101700 + ... + 102533.

It is an arithmetic number, because the mean of its divisors is an integer number (14296380).

Almost surely, 2^85165161 is an apocalyptic number.

It is an amenable number.

85165161 is a deficient number, since it is larger than the sum of its proper divisors (29205879).

85165161 is a wasteful number, since it uses less digits than its factorization.

85165161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204375.

The product of its digits is 7200, while the sum is 33.

The square root of 85165161 is about 9228.4972232753. The cubic root of 85165161 is about 439.9675613138.

The spelling of 85165161 in words is "eighty-five million, one hundred sixty-five thousand, one hundred sixty-one".