18886091109616 has 20 divisors (see below), whose sum is σ = 36708708248752. Its totient is φ = 9412876077696.

The previous prime is 18886091109521. The next prime is 18886091109643. The reversal of 18886091109616 is 61690119068881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885587156 + ... + 1885597171.

Almost surely, 2^{18886091109616} is an apocalyptic number.

18886091109616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18886091109616 is a deficient number, since it is larger than the sum of its proper divisors (17822617139136).

18886091109616 is a wasteful number, since it uses less digits than its factorization.

18886091109616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771184648 (or 3771184642 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 64.

The spelling of 18886091109616 in words is "eighteen trillion, eight hundred eighty-six billion, ninety-one million, one hundred nine thousand, six hundred sixteen".