18667582252 has 24 divisors (see below), whose sum is σ = 35712552960. Its totient is φ = 8467540560.

The previous prime is 18667582231. The next prime is 18667582261. The reversal of 18667582252 is 25228576681.

It is a self number, because there is not a number n which added to its sum of digits gives 18667582252.

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, 421788 + ... + 463939.

It is an arithmetic number, because the mean of its divisors is an integer number (1488023040).

Almost surely, 2^18667582252 is an apocalyptic number.

It is an amenable number.

18667582252 is a deficient number, since it is larger than the sum of its proper divisors (17044970708).

18667582252 is a wasteful number, since it uses less digits than its factorization.

18667582252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886221 (or 886219 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 52.

The spelling of 18667582252 in words is "eighteen billion, six hundred sixty-seven million, five hundred eighty-two thousand, two hundred fifty-two".