13165235136156 has 24 divisors (see below), whose sum is σ = 30719674366864. Its totient is φ = 4388298514560.

The previous prime is 13165235136139. The next prime is 13165235136169. The reversal of 13165235136156 is 65163153256131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13664425 + ... + 14596128.

Almost surely, 2^{13165235136156} is an apocalyptic number.

It is an amenable number.

13165235136156 is an abundant number, since it is smaller than the sum of its proper divisors (17554439230708).

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

13165235136156 is a wasteful number, since it uses less digits than its factorization.

13165235136156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28299381 (or 28299379 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 48.

The spelling of 13165235136156 in words is "thirteen trillion, one hundred sixty-five billion, two hundred thirty-five million, one hundred thirty-six thousand, one hundred fifty-six".