13645656208 has 40 divisors (see below), whose sum is σ = 27838570400. Its totient is φ = 6461731584.

The previous prime is 13645656187. The next prime is 13645656209. The reversal of 13645656208 is 80265654631.

It is not an unprimeable number, because it can be changed into a prime (13645656209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1549963 + ... + 1558741.

It is an arithmetic number, because the mean of its divisors is an integer number (695964260).

Almost surely, 2^13645656208 is an apocalyptic number.

It is an amenable number.

13645656208 is an abundant number, since it is smaller than the sum of its proper divisors (14192914192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13645656208 is a wasteful number, since it uses less digits than its factorization.

13645656208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13919 (or 13913 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 13645656208 in words is "thirteen billion, six hundred forty-five million, six hundred fifty-six thousand, two hundred eight".