85164094417 has 4 divisors (see below), whose sum is σ = 85313244016. Its totient is φ = 85014944820.

The previous prime is 85164094409. The next prime is 85164094427. The reversal of 85164094417 is 71449046158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85164094417 - 2³ = 85164094409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85164094427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74573943 + ... + 74575084.

It is an arithmetic number, because the mean of its divisors is an integer number (21328311004).

Almost surely, 2^85164094417 is an apocalyptic number.

It is an amenable number.

85164094417 is a deficient number, since it is larger than the sum of its proper divisors (149149599).

85164094417 is a wasteful number, since it uses less digits than its factorization.

85164094417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149149598.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 85164094417 in words is "eighty-five billion, one hundred sixty-four million, ninety-four thousand, four hundred seventeen".