13155865260 has 48 divisors (see below), whose sum is σ = 37302720000. Its totient is φ = 3463821504.

The previous prime is 13155865249. The next prime is 13155865291. The reversal of 13155865260 is 6256855131.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383010 + ... + 1392489.

It is an arithmetic number, because the mean of its divisors is an integer number (777140000).

Almost surely, 2^13155865260 is an apocalyptic number.

13155865260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155865260 is an abundant number, since it is smaller than the sum of its proper divisors (24146854740).

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

13155865260 is a wasteful number, since it uses less digits than its factorization.

13155865260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775590 (or 2775588 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 13155865260 in words is "thirteen billion, one hundred fifty-five million, eight hundred sixty-five thousand, two hundred sixty".