13235326556465 has 16 divisors (see below), whose sum is σ = 17107579209168. Its totient is φ = 9771799673856.

The previous prime is 13235326556443. The next prime is 13235326556483. The reversal of 13235326556465 is 56465562353231.

It can be written as a sum of positive squares in 8 ways, for example, as 508933852816 + 12726392703649 = 713396^2 + 3567407^2 .

It is a cyclic number.

It is not a de Polignac number, because 13235326556465 - 2³⁰ = 13234252814641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13235326556465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20300972 + ... + 20942781.

It is an arithmetic number, because the mean of its divisors is an integer number (1069223700573).

Almost surely, 2^{13235326556465} is an apocalyptic number.

It is an amenable number.

13235326556465 is a deficient number, since it is larger than the sum of its proper divisors (3872252652703).

13235326556465 is a wasteful number, since it uses less digits than its factorization.

13235326556465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41248708.

The product of its digits is 58320000, while the sum is 56.

The spelling of 13235326556465 in words is "thirteen trillion, two hundred thirty-five billion, three hundred twenty-six million, five hundred fifty-six thousand, four hundred sixty-five".