11520663 has 32 divisors (see below), whose sum is σ = 19533312. Its totient is φ = 5865600.

The previous prime is 11520661. The next prime is 11520667. The reversal of 11520663 is 36602511.

It is not a de Polignac number, because 11520663 - 2¹ = 11520661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11773 + ... + 12713.

It is an arithmetic number, because the mean of its divisors is an integer number (610416).

Almost surely, 2^11520663 is an apocalyptic number.

11520663 is a deficient number, since it is larger than the sum of its proper divisors (8012649).

11520663 is a wasteful number, since it uses less digits than its factorization.

11520663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 11520663 is about 3394.2102174144. The cubic root of 11520663 is about 225.8529795350.

The spelling of 11520663 in words is "eleven million, five hundred twenty thousand, six hundred sixty-three".