85666804322 has 16 divisors (see below), whose sum is σ = 140715064512. Its totient is φ = 38791395120.

The previous prime is 85666804271. The next prime is 85666804343. The reversal of 85666804322 is 22340866658.

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, 7397153 + ... + 7408724.

It is an arithmetic number, because the mean of its divisors is an integer number (8794691532).

Almost surely, 2^85666804322 is an apocalyptic number.

85666804322 is a deficient number, since it is larger than the sum of its proper divisors (55048260190).

85666804322 is a wasteful number, since it uses less digits than its factorization.

85666804322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14806153.

The product of its (nonzero) digits is 3317760, while the sum is 50.

It can be divided in two parts, 85666 and 804322, that added together give a palindrome (889988).

The spelling of 85666804322 in words is "eighty-five billion, six hundred sixty-six million, eight hundred four thousand, three hundred twenty-two".