13656348990655 has 16 divisors (see below), whose sum is σ = 18894447964224. Its totient is φ = 9281483205120.

The previous prime is 13656348990649. The next prime is 13656348990743. The reversal of 13656348990655 is 55609984365631.

It is not a de Polignac number, because 13656348990655 - 2⁵ = 13656348990623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726462416 + ... + 1726470325.

It is an arithmetic number, because the mean of its divisors is an integer number (1180902997764).

Almost surely, 2^{13656348990655} is an apocalyptic number.

13656348990655 is a deficient number, since it is larger than the sum of its proper divisors (5238098973569).

13656348990655 is a wasteful number, since it uses less digits than its factorization.

13656348990655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452932866.

The product of its (nonzero) digits is 629856000, while the sum is 70.

The spelling of 13656348990655 in words is "thirteen trillion, six hundred fifty-six billion, three hundred forty-eight million, nine hundred ninety thousand, six hundred fifty-five".