85164568 has 8 divisors (see below), whose sum is σ = 159683580. Its totient is φ = 42582280.

The previous prime is 85164559. The next prime is 85164581. The reversal of 85164568 is 86546158.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322778 + ... + 5322793.

Almost surely, 2^85164568 is an apocalyptic number.

It is an amenable number.

85164568 is a deficient number, since it is larger than the sum of its proper divisors (74519012).

85164568 is a wasteful number, since it uses less digits than its factorization.

85164568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645577 (or 10645573 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 85164568 is about 9228.4650944781. The cubic root of 85164568 is about 439.9665401553.

The spelling of 85164568 in words is "eighty-five million, one hundred sixty-four thousand, five hundred sixty-eight".