13626320445564 has 12 divisors (see below), whose sum is σ = 31794747706344. Its totient is φ = 4542106815184.

The previous prime is 13626320445527. The next prime is 13626320445613. The reversal of 13626320445564 is 46554402362631.

It is a tau number, because it is divible by the number of its divisors (12).

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, 567763351887 + ... + 567763351910.

It is an arithmetic number, because the mean of its divisors is an integer number (2649562308862).

Almost surely, 2^{13626320445564} is an apocalyptic number.

It is an amenable number.

13626320445564 is an abundant number, since it is smaller than the sum of its proper divisors (18168427260780).

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

13626320445564 is a wasteful number, since it uses less digits than its factorization.

13626320445564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135526703804 (or 1135526703802 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 51.

The spelling of 13626320445564 in words is "thirteen trillion, six hundred twenty-six billion, three hundred twenty million, four hundred forty-five thousand, five hundred sixty-four".