11043664 has 20 divisors (see below), whose sum is σ = 22135860. Its totient is φ = 5331200.

The previous prime is 11043661. The next prime is 11043667. The reversal of 11043664 is 46634011.

It is an interprime number because it is at equal distance from previous prime (11043661) and next prime (11043667).

It can be written as a sum of positive squares in 2 ways, for example, as 7075600 + 3968064 = 2660^2 + 1992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11043661) 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, 11437 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (1106793).

Almost surely, 2^11043664 is an apocalyptic number.

It is an amenable number.

11043664 is an abundant number, since it is smaller than the sum of its proper divisors (11092196).

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

11043664 is a wasteful number, since it uses less digits than its factorization.

11043664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23838 (or 23832 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 11043664 is about 3323.2008666345. The cubic root of 11043664 is about 222.6918868171.

Adding to 11043664 its reverse (46634011), we get a palindrome (57677675).

The spelling of 11043664 in words is "eleven million, forty-three thousand, six hundred sixty-four".