13700665399 has 2 divisors, whose sum is σ = 13700665400. Its totient is φ = 13700665398.

The previous prime is 13700665397. The next prime is 13700665417. The reversal of 13700665399 is 99356600731.

13700665399 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 is a cyclic number.

It is not a de Polignac number, because 13700665399 - 2¹ = 13700665397 is a prime.

Together with 13700665397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13700665397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6850332699 + 6850332700.

It is an arithmetic number, because the mean of its divisors is an integer number (6850332700).

Almost surely, 2^13700665399 is an apocalyptic number.

13700665399 is a deficient number, since it is larger than the sum of its proper divisors (1).

13700665399 is an equidigital number, since it uses as much as digits as its factorization.

13700665399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 49.

The spelling of 13700665399 in words is "thirteen billion, seven hundred million, six hundred sixty-five thousand, three hundred ninety-nine".