18836182220 has 12 divisors (see below), whose sum is σ = 39555982704. Its totient is φ = 7534472880.

The previous prime is 18836182201. The next prime is 18836182229. The reversal of 18836182220 is 2228163881.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18836182229) 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, 470904536 + ... + 470904575.

It is an arithmetic number, because the mean of its divisors is an integer number (3296331892).

Almost surely, 2^18836182220 is an apocalyptic number.

18836182220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18836182220 is an abundant number, since it is smaller than the sum of its proper divisors (20719800484).

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

18836182220 is a wasteful number, since it uses less digits than its factorization.

18836182220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941809120 (or 941809118 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 18836182220 in words is "eighteen billion, eight hundred thirty-six million, one hundred eighty-two thousand, two hundred twenty".