13308866644 has 48 divisors (see below), whose sum is σ = 24329753280. Its totient is φ = 6362254080.

The previous prime is 13308866611. The next prime is 13308866647. The reversal of 13308866644 is 44666880331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13308866647) 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 15 ways as a sum of consecutive naturals, for example, 8692159 + ... + 8693689.

It is an arithmetic number, because the mean of its divisors is an integer number (506869860).

Almost surely, 2^13308866644 is an apocalyptic number.

It is an amenable number.

13308866644 is a deficient number, since it is larger than the sum of its proper divisors (11020886636).

13308866644 is a wasteful number, since it uses less digits than its factorization.

13308866644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 13308866644 in words is "thirteen billion, three hundred eight million, eight hundred sixty-six thousand, six hundred forty-four".