18016577708 has 12 divisors (see below), whose sum is σ = 33188432760. Its totient is φ = 8534168352.

The previous prime is 18016577707. The next prime is 18016577771. The reversal of 18016577708 is 80777561081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18016577701) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 118530041 + ... + 118530192.

It is an arithmetic number, because the mean of its divisors is an integer number (2765702730).

Almost surely, 2^18016577708 is an apocalyptic number.

It is an amenable number.

18016577708 is a deficient number, since it is larger than the sum of its proper divisors (15171855052).

18016577708 is a wasteful number, since it uses less digits than its factorization.

18016577708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237060256 (or 237060254 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 50.

The spelling of 18016577708 in words is "eighteen billion, sixteen million, five hundred seventy-seven thousand, seven hundred eight".