13085566 has 16 divisors (see below), whose sum is σ = 22251600. Its totient is φ = 5721408.

The previous prime is 13085561. The next prime is 13085603. The reversal of 13085566 is 66558031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13085561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12751 + ... + 13738.

It is an arithmetic number, because the mean of its divisors is an integer number (1390725).

Almost surely, 2^13085566 is an apocalyptic number.

13085566 is a deficient number, since it is larger than the sum of its proper divisors (9166034).

13085566 is a wasteful number, since it uses less digits than its factorization.

13085566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26523.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 13085566 is about 3617.3976834183. The cubic root of 13085566 is about 235.6482238763.

The spelling of 13085566 in words is "thirteen million, eighty-five thousand, five hundred sixty-six".