13644300895566 has 32 divisors (see below), whose sum is σ = 29770647147648. Its totient is φ = 4134461166240.

The previous prime is 13644300895559. The next prime is 13644300895609. The reversal of 13644300895566 is 66559800344631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815525 + ... + 5934288.

It is an arithmetic number, because the mean of its divisors is an integer number (930332723364).

Almost surely, 2^{13644300895566} is an apocalyptic number.

13644300895566 is an abundant number, since it is smaller than the sum of its proper divisors (16126346252082).

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

13644300895566 is a wasteful number, since it uses less digits than its factorization.

13644300895566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773456.

The product of its (nonzero) digits is 55987200, while the sum is 60.

The spelling of 13644300895566 in words is "thirteen trillion, six hundred forty-four billion, three hundred million, eight hundred ninety-five thousand, five hundred sixty-six".