13015535265 has 24 divisors (see below), whose sum is σ = 22563066240. Its totient is φ = 6940755744.

The previous prime is 13015535233. The next prime is 13015535293. The reversal of 13015535265 is 56253551031.

It is not a de Polignac number, because 13015535265 - 2⁵ = 13015535233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534526 + ... + 558344.

It is an arithmetic number, because the mean of its divisors is an integer number (940127760).

Almost surely, 2^13015535265 is an apocalyptic number.

13015535265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13015535265 is a deficient number, since it is larger than the sum of its proper divisors (9547530975).

13015535265 is a wasteful number, since it uses less digits than its factorization.

13015535265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35973 (or 35970 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 13015535265 in words is "thirteen billion, fifteen million, five hundred thirty-five thousand, two hundred sixty-five".