11040665 has 8 divisors (see below), whose sum is σ = 13366728. Its totient is φ = 8753920.

The previous prime is 11040661. The next prime is 11040703. The reversal of 11040665 is 56604011.

It can be written as a sum of positive squares in 4 ways, for example, as 203401 + 10837264 = 451^2 + 3292^2 .

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

It is not a de Polignac number, because 11040665 - 2² = 11040661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11040665.

It is not an unprimeable number, because it can be changed into a prime (11040661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9206 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (1670841).

Almost surely, 2^11040665 is an apocalyptic number.

It is an amenable number.

11040665 is a deficient number, since it is larger than the sum of its proper divisors (2326063).

11040665 is a wasteful number, since it uses less digits than its factorization.

11040665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19659.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 11040665 is about 3322.7496144007. The cubic root of 11040665 is about 222.6717270395.

Adding to 11040665 its reverse (56604011), we get a palindrome (67644676).

The spelling of 11040665 in words is "eleven million, forty thousand, six hundred sixty-five".