11665266 has 8 divisors (see below), whose sum is σ = 23330544. Its totient is φ = 3888420.

The previous prime is 11665253. The next prime is 11665267. The reversal of 11665266 is 66256611.

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

11665266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11665267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972100 + ... + 972111.

It is an arithmetic number, because the mean of its divisors is an integer number (2916318).

Almost surely, 2^11665266 is an apocalyptic number.

11665266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11665266 is a wasteful number, since it uses less digits than its factorization.

11665266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944216.

The product of its digits is 12960, while the sum is 33.

The square root of 11665266 is about 3415.4452125601. The cubic root of 11665266 is about 226.7939937256.

The spelling of 11665266 in words is "eleven million, six hundred sixty-five thousand, two hundred sixty-six".