11660564 has 24 divisors (see below), whose sum is σ = 21148008. Its totient is φ = 5621760.

The previous prime is 11660549. The next prime is 11660567. The reversal of 11660564 is 46506611.

11660564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1800964 + 9859600 = 1342^2 + 3140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660567) 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, 15542 + ... + 16274.

It is an arithmetic number, because the mean of its divisors is an integer number (881167).

Almost surely, 2^11660564 is an apocalyptic number.

It is an amenable number.

11660564 is a deficient number, since it is larger than the sum of its proper divisors (9487444).

11660564 is a wasteful number, since it uses less digits than its factorization.

11660564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 11660564 is about 3414.7567995393. The cubic root of 11660564 is about 226.7635178191.

The spelling of 11660564 in words is "eleven million, six hundred sixty thousand, five hundred sixty-four".