13660976855 has 4 divisors (see below), whose sum is σ = 16393172232. Its totient is φ = 10928781480.

The previous prime is 13660976827. The next prime is 13660976899. The reversal of 13660976855 is 55867906631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55867906631 = 29 ⋅1926479539.

It is not a de Polignac number, because 13660976855 - 2⁸ = 13660976599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13660976855.

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, 1366097681 + ... + 1366097690.

It is an arithmetic number, because the mean of its divisors is an integer number (4098293058).

Almost surely, 2^13660976855 is an apocalyptic number.

13660976855 is a deficient number, since it is larger than the sum of its proper divisors (2732195377).

13660976855 is an equidigital number, since it uses as much as digits as its factorization.

13660976855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732195376.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 13660976855 in words is "thirteen billion, six hundred sixty million, nine hundred seventy-six thousand, eight hundred fifty-five".