11665941 has 8 divisors (see below), whose sum is σ = 17776704. Its totient is φ = 6666240.

The previous prime is 11665937. The next prime is 11665963. The reversal of 11665941 is 14956611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11665941 - 2² = 11665937 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665931) 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, 277740 + ... + 277781.

It is an arithmetic number, because the mean of its divisors is an integer number (2222088).

Almost surely, 2^11665941 is an apocalyptic number.

It is an amenable number.

11665941 is a deficient number, since it is larger than the sum of its proper divisors (6110763).

11665941 is an equidigital number, since it uses as much as digits as its factorization.

11665941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555531.

The product of its digits is 6480, while the sum is 33.

The square root of 11665941 is about 3415.5440269450. The cubic root of 11665941 is about 226.7983680506.

The spelling of 11665941 in words is "eleven million, six hundred sixty-five thousand, nine hundred forty-one".