18351668332 has 12 divisors (see below), whose sum is σ = 32983404160. Its totient is φ = 8927838576.

The previous prime is 18351668327. The next prime is 18351668353. The reversal of 18351668332 is 23386615381.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61998732 + ... + 61999027.

Almost surely, 2^18351668332 is an apocalyptic number.

It is an amenable number.

18351668332 is a deficient number, since it is larger than the sum of its proper divisors (14631735828).

18351668332 is a wasteful number, since it uses less digits than its factorization.

18351668332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123997800 (or 123997798 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The spelling of 18351668332 in words is "eighteen billion, three hundred fifty-one million, six hundred sixty-eight thousand, three hundred thirty-two".