85308666 has 16 divisors (see below), whose sum is σ = 174248064. Its totient is φ = 27831104.

The previous prime is 85308661. The next prime is 85308673. The reversal of 85308666 is 66680358.

It is not an unprimeable number, because it can be changed into a prime (85308661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150975 + ... + 151538.

It is an arithmetic number, because the mean of its divisors is an integer number (10890504).

Almost surely, 2^85308666 is an apocalyptic number.

85308666 is an abundant number, since it is smaller than the sum of its proper divisors (88939398).

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

85308666 is a wasteful number, since it uses less digits than its factorization.

85308666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302565.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 85308666 is about 9236.2690519495. The cubic root of 85308666 is about 440.2145406914.

The spelling of 85308666 in words is "eighty-five million, three hundred eight thousand, six hundred sixty-six".