13581794003161 has 2 divisors, whose sum is σ = 13581794003162. Its totient is φ = 13581794003160.

The previous prime is 13581794003159. The next prime is 13581794003179. The reversal of 13581794003161 is 16130049718531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11861549283600 + 1720244719561 = 3444060^2 + 1311581^2 .

It is a cyclic number.

It is not a de Polignac number, because 13581794003161 - 2¹ = 13581794003159 is a prime.

Together with 13581794003159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13581794003111) 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, 6790897001580 + 6790897001581.

It is an arithmetic number, because the mean of its divisors is an integer number (6790897001581).

Almost surely, 2^{13581794003161} is an apocalyptic number.

It is an amenable number.

13581794003161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13581794003161 is an equidigital number, since it uses as much as digits as its factorization.

13581794003161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 13581794003161 in words is "thirteen trillion, five hundred eighty-one billion, seven hundred ninety-four million, three thousand, one hundred sixty-one".