18380202164 has 12 divisors (see below), whose sum is σ = 32169021024. Its totient is φ = 9189053304.

The previous prime is 18380202163. The next prime is 18380202187. The reversal of 18380202164 is 46120208381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18380202161) 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, 221792 + ... + 293175.

It is an arithmetic number, because the mean of its divisors is an integer number (2680751752).

Almost surely, 2^18380202164 is an apocalyptic number.

It is an amenable number.

18380202164 is a deficient number, since it is larger than the sum of its proper divisors (13788818860).

18380202164 is a wasteful number, since it uses less digits than its factorization.

18380202164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523894 (or 523892 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 18380202164 in words is "eighteen billion, three hundred eighty million, two hundred two thousand, one hundred sixty-four".