18674993166 has 16 divisors (see below), whose sum is σ = 37423371600. Its totient is φ = 6212766848.

The previous prime is 18674993143. The next prime is 18674993167. The reversal of 18674993166 is 66139947681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18674993167) 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, 3054411 + ... + 3060518.

It is an arithmetic number, because the mean of its divisors is an integer number (2338960725).

Almost surely, 2^18674993166 is an apocalyptic number.

18674993166 is an abundant number, since it is smaller than the sum of its proper divisors (18748378434).

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

18674993166 is a wasteful number, since it uses less digits than its factorization.

18674993166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115443.

The product of its digits is 11757312, while the sum is 60.

The spelling of 18674993166 in words is "eighteen billion, six hundred seventy-four million, nine hundred ninety-three thousand, one hundred sixty-six".