11530656 has 36 divisors (see below), whose sum is σ = 32791122. Its totient is φ = 3843456.

The previous prime is 11530621. The next prime is 11530669. The reversal of 11530656 is 65603511.

It is a happy number.

11530656 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 0 + 656 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8503056 + 3027600 = 2916^2 + 1740^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19731 + ... + 20306.

Almost surely, 2^11530656 is an apocalyptic number.

11530656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11530656 is an abundant number, since it is smaller than the sum of its proper divisors (21260466).

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

11530656 is a wasteful number, since it uses less digits than its factorization.

11530656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40053 (or 40042 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 11530656 is about 3395.6819639065. The cubic root of 11530656 is about 225.9182621373.

The spelling of 11530656 in words is "eleven million, five hundred thirty thousand, six hundred fifty-six".