18316466039 has 4 divisors (see below), whose sum is σ = 18357260400. Its totient is φ = 18275671680.

The previous prime is 18316466023. The next prime is 18316466041. The reversal of 18316466039 is 93066461381.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18316466039 - 2⁴ = 18316466023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18316465984 and 18316466002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18316426039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20396507 + ... + 20397404.

It is an arithmetic number, because the mean of its divisors is an integer number (4589315100).

Almost surely, 2^18316466039 is an apocalyptic number.

18316466039 is a deficient number, since it is larger than the sum of its proper divisors (40794361).

18316466039 is an equidigital number, since it uses as much as digits as its factorization.

18316466039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40794360.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 18316466039 in words is "eighteen billion, three hundred sixteen million, four hundred sixty-six thousand, thirty-nine".