85816166 has 8 divisors (see below), whose sum is σ = 128774880. Its totient is φ = 42891208.

The previous prime is 85816127. The next prime is 85816177. The reversal of 85816166 is 66161858.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641 + ... + 13116.

It is an arithmetic number, because the mean of its divisors is an integer number (16096860).

Almost surely, 2^85816166 is an apocalyptic number.

85816166 is a deficient number, since it is larger than the sum of its proper divisors (42958714).

85816166 is a wasteful number, since it uses less digits than its factorization.

85816166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16878.

The product of its digits is 69120, while the sum is 41.

The square root of 85816166 is about 9263.7015280070. The cubic root of 85816166 is about 441.0857586248.

The spelling of 85816166 in words is "eighty-five million, eight hundred sixteen thousand, one hundred sixty-six".