13665666908 has 24 divisors (see below), whose sum is σ = 24345991824. Its totient is φ = 6710745600.

The previous prime is 13665666893. The next prime is 13665666929. The reversal of 13665666908 is 80966656631.

13665666908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 83603 + ... + 185258.

It is an arithmetic number, because the mean of its divisors is an integer number (1014416326).

Almost surely, 2^13665666908 is an apocalyptic number.

It is an amenable number.

13665666908 is a deficient number, since it is larger than the sum of its proper divisors (10680324916).

13665666908 is a wasteful number, since it uses less digits than its factorization.

13665666908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269093 (or 269091 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 13665666908 in words is "thirteen billion, six hundred sixty-five million, six hundred sixty-six thousand, nine hundred eight".