18165016830186 has 16 divisors (see below), whose sum is σ = 40366704067200. Its totient is φ = 6055005610044.

The previous prime is 18165016830173. The next prime is 18165016830193. The reversal of 18165016830186 is 68103861056181.

It is a happy number.

18165016830186 is a `hidden beast` number, since 18 + 16 + 501 + 6 + 8 + 30 + 1 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 336389200559 = 18165016830186 / (1 + 8 + 1 + 6 + 5 + 0 + 1 + 6 + 8 + 3 + 0 + 1 + 8 + 6).

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, 168194600226 + ... + 168194600333.

It is an arithmetic number, because the mean of its divisors is an integer number (2522919004200).

Almost surely, 2^{18165016830186} is an apocalyptic number.

18165016830186 is an abundant number, since it is smaller than the sum of its proper divisors (22201687237014).

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

18165016830186 is a wasteful number, since it uses less digits than its factorization.

18165016830186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336389200570 (or 336389200564 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 18165016830186 in words is "eighteen trillion, one hundred sixty-five billion, sixteen million, eight hundred thirty thousand, one hundred eighty-six".