13151515512 has 16 divisors (see below), whose sum is σ = 32878788840. Its totient is φ = 4383838496.

The previous prime is 13151515459. The next prime is 13151515519. The reversal of 13151515512 is 21551515131.

It is a self number, because there is not a number n which added to its sum of digits gives 13151515512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13151515519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273989883 + ... + 273989930.

Almost surely, 2^13151515512 is an apocalyptic number.

13151515512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13151515512 is an abundant number, since it is smaller than the sum of its proper divisors (19727273328).

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

13151515512 is a wasteful number, since it uses less digits than its factorization.

13151515512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547979822 (or 547979818 counting only the distinct ones).

The product of its digits is 3750, while the sum is 30.

The spelling of 13151515512 in words is "thirteen billion, one hundred fifty-one million, five hundred fifteen thousand, five hundred twelve".