18073162536 has 128 divisors (see below), whose sum is σ = 56204668800. Its totient is φ = 4758036480.

The previous prime is 18073162517. The next prime is 18073162543. The reversal of 18073162536 is 63526137081.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96541 + ... + 213228.

It is an arithmetic number, because the mean of its divisors is an integer number (439098975).

Almost surely, 2^18073162536 is an apocalyptic number.

It is an amenable number.

18073162536 is an abundant number, since it is smaller than the sum of its proper divisors (38131506264).

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

18073162536 is a wasteful number, since it uses less digits than its factorization.

18073162536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309819 (or 309815 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 18073162536 in words is "eighteen billion, seventy-three million, one hundred sixty-two thousand, five hundred thirty-six".