13266316120256 has 56 divisors (see below), whose sum is σ = 27718152549360. Its totient is φ = 6282397670400.

The previous prime is 13266316120241. The next prime is 13266316120303. The reversal of 13266316120256 is 65202161366231.

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, 3218726 + ... + 6073946.

It is an arithmetic number, because the mean of its divisors is an integer number (494967009810).

Almost surely, 2^{13266316120256} is an apocalyptic number.

13266316120256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13266316120256 is an abundant number, since it is smaller than the sum of its proper divisors (14451836429104).

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

13266316120256 is a wasteful number, since it uses less digits than its factorization.

13266316120256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859073 (or 2859063 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

Adding to 13266316120256 its reverse (65202161366231), we get a palindrome (78468477486487).

The spelling of 13266316120256 in words is "thirteen trillion, two hundred sixty-six billion, three hundred sixteen million, one hundred twenty thousand, two hundred fifty-six".