18183315331655 has 8 divisors (see below), whose sum is σ = 23103506539152. Its totient is φ = 13690966837888.

The previous prime is 18183315331567. The next prime is 18183315331661. The reversal of 18183315331655 is 55613351338181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18183315331655 - 2¹⁴ = 18183315315271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18183315331597 and 18183315331606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106960678337 + ... + 106960678506.

It is an arithmetic number, because the mean of its divisors is an integer number (2887938317394).

Almost surely, 2^{18183315331655} is an apocalyptic number.

18183315331655 is a deficient number, since it is larger than the sum of its proper divisors (4920191207497).

18183315331655 is a wasteful number, since it uses less digits than its factorization.

18183315331655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213921356865.

The product of its digits is 3888000, while the sum is 53.

The spelling of 18183315331655 in words is "eighteen trillion, one hundred eighty-three billion, three hundred fifteen million, three hundred thirty-one thousand, six hundred fifty-five".