13156319172 has 12 divisors (see below), whose sum is σ = 30698078096. Its totient is φ = 4385439720.

The previous prime is 13156319167. The next prime is 13156319177. The reversal of 13156319172 is 27191365131.

13156319172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13156319167) and next prime (13156319177).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13156319172.

It is not an unprimeable number, because it can be changed into a prime (13156319177) 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 3 ways as a sum of consecutive naturals, for example, 548179954 + ... + 548179977.

Almost surely, 2^13156319172 is an apocalyptic number.

13156319172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13156319172 is an abundant number, since it is smaller than the sum of its proper divisors (17541758924).

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

13156319172 is a wasteful number, since it uses less digits than its factorization.

13156319172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096359938 (or 1096359936 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The spelling of 13156319172 in words is "thirteen billion, one hundred fifty-six million, three hundred nineteen thousand, one hundred seventy-two".