18333670172 has 6 divisors (see below), whose sum is σ = 32083922808. Its totient is φ = 9166835084.

The previous prime is 18333670151. The next prime is 18333670217. The reversal of 18333670172 is 27107633381.

It is a super-2 number, since 2×18333670172² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2291708768 + ... + 2291708775.

It is an arithmetic number, because the mean of its divisors is an integer number (5347320468).

Almost surely, 2^18333670172 is an apocalyptic number.

It is an amenable number.

18333670172 is a deficient number, since it is larger than the sum of its proper divisors (13750252636).

18333670172 is a wasteful number, since it uses less digits than its factorization.

18333670172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583417547 (or 4583417545 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 18333670172 in words is "eighteen billion, three hundred thirty-three million, six hundred seventy thousand, one hundred seventy-two".