13456664632969 has 2 divisors, whose sum is σ = 13456664632970. Its totient is φ = 13456664632968.

The previous prime is 13456664632963. The next prime is 13456664633011. The reversal of 13456664632969 is 96923646665431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12843909145600 + 612755487369 = 3583840^2 + 782787^2 .

It is a cyclic number.

It is not a de Polignac number, because 13456664632969 - 2⁵ = 13456664632937 is a prime.

It is a super-2 number, since 2×13456664632969² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13456664632898 and 13456664632907.

It is not a weakly prime, because it can be changed into another prime (13456664632963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6728332316484 + 6728332316485.

It is an arithmetic number, because the mean of its divisors is an integer number (6728332316485).

Almost surely, 2^{13456664632969} is an apocalyptic number.

It is an amenable number.

13456664632969 is a deficient number, since it is larger than the sum of its proper divisors (1).

13456664632969 is an equidigital number, since it uses as much as digits as its factorization.

13456664632969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 906992640, while the sum is 70.

The spelling of 13456664632969 in words is "thirteen trillion, four hundred fifty-six billion, six hundred sixty-four million, six hundred thirty-two thousand, nine hundred sixty-nine".