13245116609 has 2 divisors, whose sum is σ = 13245116610. Its totient is φ = 13245116608.

The previous prime is 13245116567. The next prime is 13245116617. The reversal of 13245116609 is 90661154231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12694979584 + 550137025 = 112672^2 + 23455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13245116609 is a prime.

It is a super-2 number, since 2×13245116609² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13245116009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622558304 + 6622558305.

It is an arithmetic number, because the mean of its divisors is an integer number (6622558305).

Almost surely, 2^13245116609 is an apocalyptic number.

It is an amenable number.

13245116609 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245116609 is an equidigital number, since it uses as much as digits as its factorization.

13245116609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 13245116609 in words is "thirteen billion, two hundred forty-five million, one hundred sixteen thousand, six hundred nine".