18008686164 has 24 divisors (see below), whose sum is σ = 48023163328. Its totient is φ = 5145338880.

The previous prime is 18008686159. The next prime is 18008686183. The reversal of 18008686164 is 46168680081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107194477 + ... + 107194644.

Almost surely, 2^18008686164 is an apocalyptic number.

18008686164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18008686164 is an abundant number, since it is smaller than the sum of its proper divisors (30014477164).

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

18008686164 is a wasteful number, since it uses less digits than its factorization.

18008686164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214389135 (or 214389133 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 18008686164 in words is "eighteen billion, eight million, six hundred eighty-six thousand, one hundred sixty-four".