13656655 has 4 divisors (see below), whose sum is σ = 16387992. Its totient is φ = 10925320.

The previous prime is 13656653. The next prime is 13656673. The reversal of 13656655 is 55665631.

It is a happy number.

13656655 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55665631 = 7 ⋅7952233.

It is not a de Polignac number, because 13656655 - 2¹ = 13656653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13656653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365661 + ... + 1365670.

It is an arithmetic number, because the mean of its divisors is an integer number (4096998).

Almost surely, 2^13656655 is an apocalyptic number.

13656655 is a deficient number, since it is larger than the sum of its proper divisors (2731337).

13656655 is an equidigital number, since it uses as much as digits as its factorization.

13656655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731336.

The product of its digits is 81000, while the sum is 37.

The square root of 13656655 is about 3695.4911716848. The cubic root of 13656655 is about 239.0276340426.

The spelling of 13656655 in words is "thirteen million, six hundred fifty-six thousand, six hundred fifty-five".