18466188228 has 36 divisors (see below), whose sum is σ = 46683262080. Its totient is φ = 6154757616.

The previous prime is 18466188199. The next prime is 18466188263. The reversal of 18466188228 is 82288166481.

18466188228 is a `hidden beast` number, since 18 + 4 + 6 + 618 + 8 + 2 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435013 + ... + 475571.

It is an arithmetic number, because the mean of its divisors is an integer number (1296757280).

Almost surely, 2^18466188228 is an apocalyptic number.

18466188228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18466188228 is an abundant number, since it is smaller than the sum of its proper divisors (28217073852).

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

18466188228 is a wasteful number, since it uses less digits than its factorization.

18466188228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53216 (or 53211 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 54.

The spelling of 18466188228 in words is "eighteen billion, four hundred sixty-six million, one hundred eighty-eight thousand, two hundred twenty-eight".