18658118045 has 64 divisors (see below), whose sum is σ = 26766360576. Its totient is φ = 12221986560.

The previous prime is 18658118033. The next prime is 18658118053. The reversal of 18658118045 is 54081185681.

It is not a de Polignac number, because 18658118045 - 2⁶ = 18658117981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12496319 + ... + 12497811.

It is an arithmetic number, because the mean of its divisors is an integer number (418224384).

Almost surely, 2^18658118045 is an apocalyptic number.

It is an amenable number.

18658118045 is a deficient number, since it is larger than the sum of its proper divisors (8108242531).

18658118045 is a wasteful number, since it uses less digits than its factorization.

18658118045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its (nonzero) digits is 307200, while the sum is 47.

The spelling of 18658118045 in words is "eighteen billion, six hundred fifty-eight million, one hundred eighteen thousand, forty-five".