13065899613756 has 36 divisors (see below), whose sum is σ = 33510613062696. Its totient is φ = 3959363518880.

The previous prime is 13065899613751. The next prime is 13065899613773. The reversal of 13065899613756 is 65731699856031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13065899613751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4499275275 + ... + 4499278178.

Almost surely, 2^{13065899613756} is an apocalyptic number.

It is an amenable number.

13065899613756 is an abundant number, since it is smaller than the sum of its proper divisors (20444713448940).

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

13065899613756 is a wasteful number, since it uses less digits than its factorization.

13065899613756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8998553482 (or 8998553469 counting only the distinct ones).

The product of its (nonzero) digits is 220449600, while the sum is 69.

The spelling of 13065899613756 in words is "thirteen trillion, sixty-five billion, eight hundred ninety-nine million, six hundred thirteen thousand, seven hundred fifty-six".