13165650613 has 2 divisors, whose sum is σ = 13165650614. Its totient is φ = 13165650612.

The previous prime is 13165650607. The next prime is 13165650643. The reversal of 13165650613 is 31605656131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12892012849 + 273637764 = 113543^2 + 16542^2 .

It is a cyclic number.

It is not a de Polignac number, because 13165650613 - 2⁹ = 13165650101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13165650643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582825306 + 6582825307.

It is an arithmetic number, because the mean of its divisors is an integer number (6582825307).

Almost surely, 2^13165650613 is an apocalyptic number.

It is an amenable number.

13165650613 is a deficient number, since it is larger than the sum of its proper divisors (1).

13165650613 is an equidigital number, since it uses as much as digits as its factorization.

13165650613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 13165650613 in words is "thirteen billion, one hundred sixty-five million, six hundred fifty thousand, six hundred thirteen".