13156023155 has 32 divisors (see below), whose sum is σ = 18416196288. Its totient is φ = 8915968000.

The previous prime is 13156023143. The next prime is 13156023157. The reversal of 13156023155 is 55132065131.

13156023155 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 13156023155 - 2³⁰ = 12082281331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13156023157) 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 31 ways as a sum of consecutive naturals, for example, 24779 + ... + 164091.

It is an arithmetic number, because the mean of its divisors is an integer number (575506134).

Almost surely, 2^13156023155 is an apocalyptic number.

13156023155 is a deficient number, since it is larger than the sum of its proper divisors (5260173133).

13156023155 is a wasteful number, since it uses less digits than its factorization.

13156023155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139447.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 13156023155 its reverse (55132065131), we get a palindrome (68288088286).

The spelling of 13156023155 in words is "thirteen billion, one hundred fifty-six million, twenty-three thousand, one hundred fifty-five".