85665118 has 16 divisors (see below), whose sum is σ = 160205184. Its totient is φ = 33375960.

The previous prime is 85665103. The next prime is 85665127. The reversal of 85665118 is 81156658.

It is a congruent number.

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, 277980 + ... + 278287.

It is an arithmetic number, because the mean of its divisors is an integer number (10012824).

Almost surely, 2^85665118 is an apocalyptic number.

85665118 is a deficient number, since it is larger than the sum of its proper divisors (74540066).

85665118 is a wasteful number, since it uses less digits than its factorization.

85665118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556287.

The product of its digits is 57600, while the sum is 40.

The square root of 85665118 is about 9255.5452567636. The cubic root of 85665118 is about 440.8268165444.

The spelling of 85665118 in words is "eighty-five million, six hundred sixty-five thousand, one hundred eighteen".