13156445455 has 4 divisors (see below), whose sum is σ = 15787734552. Its totient is φ = 10525156360.

The previous prime is 13156445387. The next prime is 13156445527. The reversal of 13156445455 is 55454465131.

13156445455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13156445455 - 2⁹ = 13156444943 is a prime.

It is a Duffinian number.

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, 1315644541 + ... + 1315644550.

It is an arithmetic number, because the mean of its divisors is an integer number (3946933638).

Almost surely, 2^13156445455 is an apocalyptic number.

13156445455 is a deficient number, since it is larger than the sum of its proper divisors (2631289097).

13156445455 is an equidigital number, since it uses as much as digits as its factorization.

13156445455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631289096.

The product of its digits is 720000, while the sum is 43.

The spelling of 13156445455 in words is "thirteen billion, one hundred fifty-six million, four hundred forty-five thousand, four hundred fifty-five".