13656654667 has 4 divisors (see below), whose sum is σ = 13681173456. Its totient is φ = 13632135880.

The previous prime is 13656654629. The next prime is 13656654769. The reversal of 13656654667 is 76645665631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76645665631 = 16519 ⋅4639849.

It is a cyclic number.

It is not a de Polignac number, because 13656654667 - 2³¹ = 11509171019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13656654467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258559 + ... + 12259672.

It is an arithmetic number, because the mean of its divisors is an integer number (3420293364).

Almost surely, 2^13656654667 is an apocalyptic number.

13656654667 is a deficient number, since it is larger than the sum of its proper divisors (24518789).

13656654667 is an equidigital number, since it uses as much as digits as its factorization.

13656654667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24518788.

The product of its digits is 16329600, while the sum is 55.

The spelling of 13656654667 in words is "thirteen billion, six hundred fifty-six million, six hundred fifty-four thousand, six hundred sixty-seven".