11644683669 has 12 divisors (see below), whose sum is σ = 17177973696. Its totient is φ = 7597949352.

The previous prime is 11644683649. The next prime is 11644683719. The reversal of 11644683669 is 96638644611.

11644683669 is a `hidden beast` number, since 116 + 4 + 468 + 3 + 6 + 69 = 666.

11644683669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11644683669 - 2⁵ = 11644683637 is a prime.

It is a super-2 number, since 2×11644683669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11644683649) 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 in 11 ways as a sum of consecutive naturals, for example, 13763979 + ... + 13764824.

It is an arithmetic number, because the mean of its divisors is an integer number (1431497808).

Almost surely, 2^11644683669 is an apocalyptic number.

It is an amenable number.

11644683669 is a deficient number, since it is larger than the sum of its proper divisors (5533290027).

11644683669 is a wasteful number, since it uses less digits than its factorization.

11644683669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27528856 (or 27528853 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 11644683669 in words is "eleven billion, six hundred forty-four million, six hundred eighty-three thousand, six hundred sixty-nine".