18118610562 has 16 divisors (see below), whose sum is σ = 39024699840. Its totient is φ = 5574957072.

The previous prime is 18118610519. The next prime is 18118610651. The reversal of 18118610562 is 26501681181.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 18118610562.

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, 116144862 + ... + 116145017.

It is an arithmetic number, because the mean of its divisors is an integer number (2439043740).

Almost surely, 2^18118610562 is an apocalyptic number.

18118610562 is an abundant number, since it is smaller than the sum of its proper divisors (20906089278).

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

18118610562 is a wasteful number, since it uses less digits than its factorization.

18118610562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232289897.

The product of its (nonzero) digits is 23040, while the sum is 39.

The spelling of 18118610562 in words is "eighteen billion, one hundred eighteen million, six hundred ten thousand, five hundred sixty-two".