13165565547 has 8 divisors (see below), whose sum is σ = 17555360256. Its totient is φ = 8776407272.

The previous prime is 13165565537. The next prime is 13165565563. The reversal of 13165565547 is 74556556131.

13165565547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13165565547 - 2⁴ = 13165565531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13165565496 and 13165565505.

It is not an unprimeable number, because it can be changed into a prime (13165565507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 108543 + ... + 195224.

It is an arithmetic number, because the mean of its divisors is an integer number (2194420032).

Almost surely, 2^13165565547 is an apocalyptic number.

13165565547 is a deficient number, since it is larger than the sum of its proper divisors (4389794709).

13165565547 is a wasteful number, since it uses less digits than its factorization.

13165565547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318217.

The product of its digits is 1890000, while the sum is 48.

The spelling of 13165565547 in words is "thirteen billion, one hundred sixty-five million, five hundred sixty-five thousand, five hundred forty-seven".