13226655635664 has 20 divisors (see below), whose sum is σ = 34168860392256. Its totient is φ = 4408885211872.

The previous prime is 13226655635653. The next prime is 13226655635689. The reversal of 13226655635664 is 46653655662231.

It is a junction number, because it is equal to n+sod(n) for n = 13226655635598 and 13226655635607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137777662824 + ... + 137777662919.

Almost surely, 2^{13226655635664} is an apocalyptic number.

It is an amenable number.

13226655635664 is an abundant number, since it is smaller than the sum of its proper divisors (20942204756592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13226655635664 is a wasteful number, since it uses less digits than its factorization.

13226655635664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275555325754 (or 275555325748 counting only the distinct ones).

The product of its digits is 139968000, while the sum is 60.

The spelling of 13226655635664 in words is "thirteen trillion, two hundred twenty-six billion, six hundred fifty-five million, six hundred thirty-five thousand, six hundred sixty-four".