18164188716 has 24 divisors (see below), whose sum is σ = 42716835840. Its totient is φ = 6007054032.

The previous prime is 18164188687. The next prime is 18164188759. The reversal of 18164188716 is 61788146181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5957856 + ... + 5960903.

It is an arithmetic number, because the mean of its divisors is an integer number (1779868160).

Almost surely, 2^18164188716 is an apocalyptic number.

It is an amenable number.

18164188716 is an abundant number, since it is smaller than the sum of its proper divisors (24552647124).

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

18164188716 is a wasteful number, since it uses less digits than its factorization.

18164188716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11918893 (or 11918891 counting only the distinct ones).

The product of its digits is 516096, while the sum is 51.

The spelling of 18164188716 in words is "eighteen billion, one hundred sixty-four million, one hundred eighty-eight thousand, seven hundred sixteen".