11665368 has 144 divisors (see below), whose sum is σ = 37761360. Its totient is φ = 3231360.

The previous prime is 11665363. The next prime is 11665391. The reversal of 11665368 is 86356611.

It is a happy number.

11665368 is a `hidden beast` number, since 116 + 6 + 536 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665363) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 113205 + ... + 113307.

Almost surely, 2^11665368 is an apocalyptic number.

11665368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11665368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18880680).

11665368 is an abundant number, since it is smaller than the sum of its proper divisors (26095992).

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

11665368 is a wasteful number, since it uses less digits than its factorization.

11665368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 132 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 11665368 is about 3415.4601446950. The cubic root of 11665368 is about 226.7946547456.

The spelling of 11665368 in words is "eleven million, six hundred sixty-five thousand, three hundred sixty-eight".