13161544263 has 12 divisors (see below), whose sum is σ = 21726993808. Its totient is φ = 7520882400.

The previous prime is 13161544247. The next prime is 13161544267. The reversal of 13161544263 is 36244516131.

13161544263 is a `hidden beast` number, since 1 + 31 + 61 + 544 + 26 + 3 = 666.

13161544263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13161544263 - 2⁴ = 13161544247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161544267) 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 11 ways as a sum of consecutive naturals, for example, 104456638 + ... + 104456763.

Almost surely, 2^13161544263 is an apocalyptic number.

13161544263 is a deficient number, since it is larger than the sum of its proper divisors (8565449545).

13161544263 is a wasteful number, since it uses less digits than its factorization.

13161544263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208913414 (or 208913411 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 13161544263 in words is "thirteen billion, one hundred sixty-one million, five hundred forty-four thousand, two hundred sixty-three".