18293416164 has 36 divisors (see below), whose sum is σ = 47954348624. Its totient is φ = 6097805064.

The previous prime is 18293416139. The next prime is 18293416177. The reversal of 18293416164 is 46161439281.

18293416164 is a `hidden beast` number, since 1 + 8 + 29 + 3 + 4 + 1 + 616 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9409222 + ... + 9411165.

Almost surely, 2^18293416164 is an apocalyptic number.

It is an amenable number.

18293416164 is an abundant number, since it is smaller than the sum of its proper divisors (29660932460).

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

18293416164 is a wasteful number, since it uses less digits than its factorization.

18293416164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18820406 (or 18820392 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The spelling of 18293416164 in words is "eighteen billion, two hundred ninety-three million, four hundred sixteen thousand, one hundred sixty-four".