13774236864161 has 4 divisors (see below), whose sum is σ = 13774472932272. Its totient is φ = 13774000796052.

The previous prime is 13774236863873. The next prime is 13774236864209. The reversal of 13774236864161 is 16146863247731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13774236864161 - 2¹⁰ = 13774236863137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13774236864161.

It is not an unprimeable number, because it can be changed into a prime (13774236860161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117946511 + ... + 118063236.

It is an arithmetic number, because the mean of its divisors is an integer number (3443618233068).

Almost surely, 2^{13774236864161} is an apocalyptic number.

It is an amenable number.

13774236864161 is a deficient number, since it is larger than the sum of its proper divisors (236068111).

13774236864161 is an equidigital number, since it uses as much as digits as its factorization.

13774236864161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236068110.

The product of its digits is 24385536, while the sum is 59.

The spelling of 13774236864161 in words is "thirteen trillion, seven hundred seventy-four billion, two hundred thirty-six million, eight hundred sixty-four thousand, one hundred sixty-one".