11660556 has 12 divisors (see below), whose sum is σ = 27207992. Its totient is φ = 3886848.

The previous prime is 11660549. The next prime is 11660567. The reversal of 11660556 is 65506611.

11660556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485845 + ... + 485868.

Almost surely, 2^11660556 is an apocalyptic number.

It is an amenable number.

11660556 is an abundant number, since it is smaller than the sum of its proper divisors (15547436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11660556 is a wasteful number, since it uses less digits than its factorization.

11660556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971720 (or 971718 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 11660556 is about 3414.7556281526. The cubic root of 11660556 is about 226.7634659603.

The spelling of 11660556 in words is "eleven million, six hundred sixty thousand, five hundred fifty-six".