18018560034564 has 24 divisors (see below), whose sum is σ = 42134506991808. Its totient is φ = 5993158071840.

The previous prime is 18018560034551. The next prime is 18018560034569. The reversal of 18018560034564 is 46543006581081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18018560034569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628570032 + ... + 1628581095.

It is an arithmetic number, because the mean of its divisors is an integer number (1755604457992).

Almost surely, 2^{18018560034564} is an apocalyptic number.

It is an amenable number.

18018560034564 is an abundant number, since it is smaller than the sum of its proper divisors (24115946957244).

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

18018560034564 is a wasteful number, since it uses less digits than its factorization.

18018560034564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257151595 (or 3257151593 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 18018560034564 in words is "eighteen trillion, eighteen billion, five hundred sixty million, thirty-four thousand, five hundred sixty-four".