85166120 has 32 divisors (see below), whose sum is σ = 206365320. Its totient is φ = 31445760.

The previous prime is 85166117. The next prime is 85166173. The reversal of 85166120 is 2166158.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26152996 + 59013124 = 5114^2 + 7682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81371 + ... + 82410.

Almost surely, 2^85166120 is an apocalyptic number.

It is an amenable number.

85166120 is an abundant number, since it is smaller than the sum of its proper divisors (121199200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85166120 is a wasteful number, since it uses less digits than its factorization.

85166120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163805 (or 163801 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 85166120 is about 9228.5491817512. The cubic root of 85166120 is about 439.9692127219.

The spelling of 85166120 in words is "eighty-five million, one hundred sixty-six thousand, one hundred twenty".