13505161156 has 12 divisors (see below), whose sum is σ = 23641324560. Its totient is φ = 6750497000.

The previous prime is 13505161079. The next prime is 13505161169. The reversal of 13505161156 is 65116150531.

13505161156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 506266 + ... + 532273.

It is an arithmetic number, because the mean of its divisors is an integer number (1970110380).

Almost surely, 2^13505161156 is an apocalyptic number.

It is an amenable number.

13505161156 is a deficient number, since it is larger than the sum of its proper divisors (10136163404).

13505161156 is a wasteful number, since it uses less digits than its factorization.

13505161156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041794 (or 1041792 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 13505161156 in words is "thirteen billion, five hundred five million, one hundred sixty-one thousand, one hundred fifty-six".