18831225041166 has 64 divisors (see below), whose sum is σ = 38599754618880. Its totient is φ = 6121816631040.

The previous prime is 18831225041147. The next prime is 18831225041177. The reversal of 18831225041166 is 66114052213881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243917631 + ... + 243994821.

It is an arithmetic number, because the mean of its divisors is an integer number (603121165920).

Almost surely, 2^{18831225041166} is an apocalyptic number.

18831225041166 is an abundant number, since it is smaller than the sum of its proper divisors (19768529577714).

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

18831225041166 is a wasteful number, since it uses less digits than its factorization.

18831225041166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80289.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 18831225041166 in words is "eighteen trillion, eight hundred thirty-one billion, two hundred twenty-five million, forty-one thousand, one hundred sixty-six".