13556665012 has 24 divisors (see below), whose sum is σ = 26039698272. Its totient is φ = 6124312800.

The previous prime is 13556664959. The next prime is 13556665039. The reversal of 13556665012 is 21056665531.

It is a congruent number.

It is an unprimeable number.

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, 937939 + ... + 952282.

It is an arithmetic number, because the mean of its divisors is an integer number (1084987428).

Almost surely, 2^13556665012 is an apocalyptic number.

It is an amenable number.

13556665012 is a deficient number, since it is larger than the sum of its proper divisors (12483033260).

13556665012 is a wasteful number, since it uses less digits than its factorization.

13556665012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890399 (or 1890397 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 13556665012 in words is "thirteen billion, five hundred fifty-six million, six hundred sixty-five thousand, twelve".