11665966 has 16 divisors (see below), whose sum is σ = 18998784. Its totient is φ = 5340384.

The previous prime is 11665963. The next prime is 11666021. The reversal of 11665966 is 66956611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665963) 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, 1536 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (1187424).

Almost surely, 2^11665966 is an apocalyptic number.

11665966 is a deficient number, since it is larger than the sum of its proper divisors (7332818).

11665966 is a wasteful number, since it uses less digits than its factorization.

11665966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675.

The product of its digits is 58320, while the sum is 40.

The square root of 11665966 is about 3415.5476866822. The cubic root of 11665966 is about 226.7985300594.

The spelling of 11665966 in words is "eleven million, six hundred sixty-five thousand, nine hundred sixty-six".