18018104568 has 32 divisors (see below), whose sum is σ = 47694983760. Its totient is φ = 5652738560.

The previous prime is 18018104537. The next prime is 18018104581. The reversal of 18018104568 is 86540181081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22080603 + ... + 22081418.

Almost surely, 2^18018104568 is an apocalyptic number.

It is an amenable number.

18018104568 is an abundant number, since it is smaller than the sum of its proper divisors (29676879192).

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

18018104568 is a wasteful number, since it uses less digits than its factorization.

18018104568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44162047 (or 44162043 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The spelling of 18018104568 in words is "eighteen billion, eighteen million, one hundred four thousand, five hundred sixty-eight".