13656240055 has 4 divisors (see below), whose sum is σ = 16387488072. Its totient is φ = 10924992040.

The previous prime is 13656240047. The next prime is 13656240089. The reversal of 13656240055 is 55004265631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13656240055 - 2³ = 13656240047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13656239996 and 13656240023.

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, 1365624001 + ... + 1365624010.

It is an arithmetic number, because the mean of its divisors is an integer number (4096872018).

Almost surely, 2^13656240055 is an apocalyptic number.

13656240055 is a deficient number, since it is larger than the sum of its proper divisors (2731248017).

13656240055 is an equidigital number, since it uses as much as digits as its factorization.

13656240055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731248016.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 13656240055 in words is "thirteen billion, six hundred fifty-six million, two hundred forty thousand, fifty-five".