13677685566 has 32 divisors (see below), whose sum is σ = 27498785280. Its totient is φ = 4535390016.

The previous prime is 13677685537. The next prime is 13677685621. The reversal of 13677685566 is 66558677631.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893025 + ... + 908211.

It is an arithmetic number, because the mean of its divisors is an integer number (859337040).

Almost surely, 2^13677685566 is an apocalyptic number.

13677685566 is an abundant number, since it is smaller than the sum of its proper divisors (13821099714).

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

13677685566 is a wasteful number, since it uses less digits than its factorization.

13677685566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15968.

The product of its digits is 38102400, while the sum is 60.

The spelling of 13677685566 in words is "thirteen billion, six hundred seventy-seven million, six hundred eighty-five thousand, five hundred sixty-six".