13165542126673 has 2 divisors, whose sum is σ = 13165542126674. Its totient is φ = 13165542126672.

The previous prime is 13165542126577. The next prime is 13165542126689. The reversal of 13165542126673 is 37662124556131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12381552300049 + 783989826624 = 3518743^2 + 885432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13165542126673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13165542126673.

It is not a weakly prime, because it can be changed into another prime (13165572126673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582771063336 + 6582771063337.

It is an arithmetic number, because the mean of its divisors is an integer number (6582771063337).

Almost surely, 2^{13165542126673} is an apocalyptic number.

It is an amenable number.

13165542126673 is a deficient number, since it is larger than the sum of its proper divisors (1).

13165542126673 is an equidigital number, since it uses as much as digits as its factorization.

13165542126673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 52.

The spelling of 13165542126673 in words is "thirteen trillion, one hundred sixty-five billion, five hundred forty-two million, one hundred twenty-six thousand, six hundred seventy-three".