12691560168269 has 8 divisors (see below), whose sum is σ = 12868032342648. Its totient is φ = 12516019246080.

The previous prime is 12691560168239. The next prime is 12691560168281. The reversal of 12691560168269 is 96286106519621.

It can be written as a sum of positive squares in 4 ways, for example, as 1893678732100 + 10797881436169 = 1376110^2 + 3286013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12691560168269 - 2¹⁶ = 12691560102733 is a prime.

It is a super-2 number, since 2×12691560168269² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12691560168239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232785602 + ... + 232840115.

It is an arithmetic number, because the mean of its divisors is an integer number (1608504042831).

Almost surely, 2^{12691560168269} is an apocalyptic number.

It is an amenable number.

12691560168269 is a deficient number, since it is larger than the sum of its proper divisors (176472174379).

12691560168269 is an equidigital number, since it uses as much as digits as its factorization.

12691560168269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465626095.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 12691560168269 in words is "twelve trillion, six hundred ninety-one billion, five hundred sixty million, one hundred sixty-eight thousand, two hundred sixty-nine".