18650916204 has 12 divisors (see below), whose sum is σ = 43518804504. Its totient is φ = 6216972064.

The previous prime is 18650916197. The next prime is 18650916241. The reversal of 18650916204 is 40261905681.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777121497 + ... + 777121520.

It is an arithmetic number, because the mean of its divisors is an integer number (3626567042).

Almost surely, 2^18650916204 is an apocalyptic number.

It is an amenable number.

18650916204 is an abundant number, since it is smaller than the sum of its proper divisors (24867888300).

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

18650916204 is a wasteful number, since it uses less digits than its factorization.

18650916204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554243024 (or 1554243022 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 18650916204 in words is "eighteen billion, six hundred fifty million, nine hundred sixteen thousand, two hundred four".