11564824072 has 8 divisors (see below), whose sum is σ = 21684045150. Its totient is φ = 5782412032.

The previous prime is 11564824067. The next prime is 11564824079. The reversal of 11564824072 is 27042846511.

It can be written as a sum of positive squares in only one way, i.e., 7095366756 + 4469457316 = 84234^2 + 66854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11564824072² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11564824079) 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 as a sum of consecutive naturals, namely, 722801497 + ... + 722801512.

Almost surely, 2^11564824072 is an apocalyptic number.

It is an amenable number.

11564824072 is a deficient number, since it is larger than the sum of its proper divisors (10119221078).

11564824072 is a wasteful number, since it uses less digits than its factorization.

11564824072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445603015 (or 1445603011 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 11564824072 in words is "eleven billion, five hundred sixty-four million, eight hundred twenty-four thousand, seventy-two".