13040440116997 has 2 divisors, whose sum is σ = 13040440116998. Its totient is φ = 13040440116996.

The previous prime is 13040440116983. The next prime is 13040440117031. The reversal of 13040440116997 is 79961104404031.

13040440116997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12605155539876 + 435284577121 = 3550374^2 + 659761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13040440116997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13040440116997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13040440117997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6520220058498 + 6520220058499.

It is an arithmetic number, because the mean of its divisors is an integer number (6520220058499).

Almost surely, 2^{13040440116997} is an apocalyptic number.

It is an amenable number.

13040440116997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13040440116997 is an equidigital number, since it uses as much as digits as its factorization.

13040440116997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 13040440116997 in words is "thirteen trillion, forty billion, four hundred forty million, one hundred sixteen thousand, nine hundred ninety-seven".