11564045033 has 4 divisors (see below), whose sum is σ = 11567904000. Its totient is φ = 11560186068.

The previous prime is 11564045027. The next prime is 11564045047. The reversal of 11564045033 is 33054046511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11564045033 - 2⁸ = 11564044777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11564044033) 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, 1924985 + ... + 1930982.

It is an arithmetic number, because the mean of its divisors is an integer number (2891976000).

Almost surely, 2^11564045033 is an apocalyptic number.

It is an amenable number.

11564045033 is a deficient number, since it is larger than the sum of its proper divisors (3858967).

11564045033 is an equidigital number, since it uses as much as digits as its factorization.

11564045033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858966.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 11564045033 in words is "eleven billion, five hundred sixty-four million, forty-five thousand, thirty-three".