13312256161205 has 8 divisors (see below), whose sum is σ = 15974765381592. Its totient is φ = 10649766270208.

The previous prime is 13312256161199. The next prime is 13312256161207. The reversal of 13312256161205 is 50216165221331.

It can be written as a sum of positive squares in 4 ways, for example, as 1166933581009 + 12145322580196 = 1080247^2 + 3485014^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13312256161205 - 2²² = 13312251966901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312256161207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3271352 + ... + 6109521.

It is an arithmetic number, because the mean of its divisors is an integer number (1996845672699).

Almost surely, 2^{13312256161205} is an apocalyptic number.

It is an amenable number.

13312256161205 is a deficient number, since it is larger than the sum of its proper divisors (2662509220387).

13312256161205 is an equidigital number, since it uses as much as digits as its factorization.

13312256161205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664695.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 13312256161205 in words is "thirteen trillion, three hundred twelve billion, two hundred fifty-six million, one hundred sixty-one thousand, two hundred five".