11544666 has 128 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 2737152.

The previous prime is 11544653. The next prime is 11544727. The reversal of 11544666 is 66644511.

It is a happy number.

Its product of digits (17280) is a multiple of the sum of its prime divisors (108).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 312000 + ... + 312036.

It is an arithmetic number, because the mean of its divisors is an integer number (246240).

Almost surely, 2^11544666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11544666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15759360).

11544666 is an abundant number, since it is smaller than the sum of its proper divisors (19974054).

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

11544666 is a wasteful number, since it uses less digits than its factorization.

11544666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108.

The product of its digits is 17280, while the sum is 33.

The square root of 11544666 is about 3397.7442517058. The cubic root of 11544666 is about 226.0097236530.

The spelling of 11544666 in words is "eleven million, five hundred forty-four thousand, six hundred sixty-six".