18557164339 has 8 divisors (see below), whose sum is σ = 21261612128. Its totient is φ = 15866072640.

The previous prime is 18557164337. The next prime is 18557164427. The reversal of 18557164339 is 93346175581.

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

It is a cyclic number.

It is not a de Polignac number, because 18557164339 - 2¹ = 18557164337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18557164337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3336042 + ... + 3341599.

It is an arithmetic number, because the mean of its divisors is an integer number (2657701516).

Almost surely, 2^18557164339 is an apocalyptic number.

18557164339 is a deficient number, since it is larger than the sum of its proper divisors (2704447789).

18557164339 is an equidigital number, since it uses as much as digits as its factorization.

18557164339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678045.

The product of its digits is 2721600, while the sum is 52.

The spelling of 18557164339 in words is "eighteen billion, five hundred fifty-seven million, one hundred sixty-four thousand, three hundred thirty-nine".