18748853166 has 16 divisors (see below), whose sum is σ = 37500699600. Its totient is φ = 6249118848.

The previous prime is 18748853161. The next prime is 18748853219. The reversal of 18748853166 is 66135884781.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18748853161) 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, 38731 + ... + 197478.

It is an arithmetic number, because the mean of its divisors is an integer number (2343793725).

Almost surely, 2^18748853166 is an apocalyptic number.

18748853166 is an abundant number, since it is smaller than the sum of its proper divisors (18751846434).

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

18748853166 is a wasteful number, since it uses less digits than its factorization.

18748853166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249443.

The product of its digits is 7741440, while the sum is 57.

The spelling of 18748853166 in words is "eighteen billion, seven hundred forty-eight million, eight hundred fifty-three thousand, one hundred sixty-six".