13556668 has 12 divisors (see below), whose sum is σ = 23788800. Its totient is φ = 6759872.

The previous prime is 13556663. The next prime is 13556677. The reversal of 13556668 is 86665531.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 13556668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13556663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893 + ... + 5956.

It is an arithmetic number, because the mean of its divisors is an integer number (1982400).

Almost surely, 2^13556668 is an apocalyptic number.

It is an amenable number.

13556668 is a deficient number, since it is larger than the sum of its proper divisors (10232132).

13556668 is a wasteful number, since it uses less digits than its factorization.

13556668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9236 (or 9234 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 13556668 is about 3681.9380766113. The cubic root of 13556668 is about 238.4428587945.

The spelling of 13556668 in words is "thirteen million, five hundred fifty-six thousand, six hundred sixty-eight".