13261155505315 has 8 divisors (see below), whose sum is σ = 15915405350448. Its totient is φ = 10607578574880.

The previous prime is 13261155505231. The next prime is 13261155505327. The reversal of 13261155505315 is 51350555116231.

13261155505315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13261155505315 - 2²⁵ = 13261121950883 is a prime.

It is a super-2 number, since 2×13261155505315² (a number of 27 digits) contains 22 as substring.

It is a Duffinian 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, 168185316 + ... + 168264145.

It is an arithmetic number, because the mean of its divisors is an integer number (1989425668806).

Almost surely, 2^{13261155505315} is an apocalyptic number.

13261155505315 is a deficient number, since it is larger than the sum of its proper divisors (2654249845133).

13261155505315 is an equidigital number, since it uses as much as digits as its factorization.

13261155505315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336457349.

The product of its (nonzero) digits is 337500, while the sum is 43.

The spelling of 13261155505315 in words is "thirteen trillion, two hundred sixty-one billion, one hundred fifty-five million, five hundred five thousand, three hundred fifteen".