18380664002 has 16 divisors (see below), whose sum is σ = 28094580000. Its totient is φ = 9016429440.

The previous prime is 18380663963. The next prime is 18380664037. The reversal of 18380664002 is 20046608381.

It is a happy number.

It is a super-3 number, since 3×18380664002³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97199 + ... + 214962.

It is an arithmetic number, because the mean of its divisors is an integer number (1755911250).

Almost surely, 2^18380664002 is an apocalyptic number.

18380664002 is a deficient number, since it is larger than the sum of its proper divisors (9713915998).

18380664002 is a wasteful number, since it uses less digits than its factorization.

18380664002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312721.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 18380664002 in words is "eighteen billion, three hundred eighty million, six hundred sixty-four thousand, two".