18118953065 has 16 divisors (see below), whose sum is σ = 22517455680. Its totient is φ = 13979797440.

The previous prime is 18118953059. The next prime is 18118953103. The reversal of 18118953065 is 56035981181.

It is not a de Polignac number, because 18118953065 - 2⁶ = 18118953001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62630 + ... + 200400.

It is an arithmetic number, because the mean of its divisors is an integer number (1407340980).

Almost surely, 2^18118953065 is an apocalyptic number.

It is an amenable number.

18118953065 is a deficient number, since it is larger than the sum of its proper divisors (4398502615).

18118953065 is a wasteful number, since it uses less digits than its factorization.

18118953065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138712.

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 18118953065 in words is "eighteen billion, one hundred eighteen million, nine hundred fifty-three thousand, sixty-five".