18466665204 has 24 divisors (see below), whose sum is σ = 46403415520. Its totient is φ = 5682050784.

The previous prime is 18466665199. The next prime is 18466665209. The reversal of 18466665204 is 40256666481.

It is an interprime number because it is at equal distance from previous prime (18466665199) and next prime (18466665209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18466665209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59187874 + ... + 59188185.

Almost surely, 2^18466665204 is an apocalyptic number.

It is an amenable number.

18466665204 is an abundant number, since it is smaller than the sum of its proper divisors (27936750316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18466665204 is a wasteful number, since it uses less digits than its factorization.

18466665204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118376079 (or 118376077 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 18466665204 in words is "eighteen billion, four hundred sixty-six million, six hundred sixty-five thousand, two hundred four".