85164042315 has 32 divisors (see below), whose sum is σ = 148700987136. Its totient is φ = 41277484160.

The previous prime is 85164042287. The next prime is 85164042331. The reversal of 85164042315 is 51324046158.

It is not a de Polignac number, because 85164042315 - 2⁸ = 85164042059 is a prime.

It is a super-2 number, since 2×85164042315² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401797 + ... + 575993.

It is an arithmetic number, because the mean of its divisors is an integer number (4646905848).

Almost surely, 2^85164042315 is an apocalyptic number.

85164042315 is a deficient number, since it is larger than the sum of its proper divisors (63536944821).

85164042315 is a wasteful number, since it uses less digits than its factorization.

85164042315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177179.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 85164042315 in words is "eighty-five billion, one hundred sixty-four million, forty-two thousand, three hundred fifteen".