13636145669 has 2 divisors, whose sum is σ = 13636145670. Its totient is φ = 13636145668.

The previous prime is 13636145641. The next prime is 13636145683. The reversal of 13636145669 is 96654163631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7686028900 + 5950116769 = 87670^2 + 77137^2 .

It is a cyclic number.

It is not a de Polignac number, because 13636145669 - 2²⁴ = 13619368453 is a prime.

It is a super-2 number, since 2×13636145669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13636145639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6818072834 + 6818072835.

It is an arithmetic number, because the mean of its divisors is an integer number (6818072835).

Almost surely, 2^13636145669 is an apocalyptic number.

It is an amenable number.

13636145669 is a deficient number, since it is larger than the sum of its proper divisors (1).

13636145669 is an equidigital number, since it uses as much as digits as its factorization.

13636145669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 50.

The spelling of 13636145669 in words is "thirteen billion, six hundred thirty-six million, one hundred forty-five thousand, six hundred sixty-nine".