11566987932 has 24 divisors (see below), whose sum is σ = 26997529216. Its totient is φ = 3854535408.

The previous prime is 11566987931. The next prime is 11566987963. The reversal of 11566987932 is 23978966511.

11566987932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11566987931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97618 + ... + 180729.

Almost surely, 2^11566987932 is an apocalyptic number.

11566987932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11566987932 is an abundant number, since it is smaller than the sum of its proper divisors (15430541284).

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

11566987932 is a wasteful number, since it uses less digits than its factorization.

11566987932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281817 (or 281815 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The spelling of 11566987932 in words is "eleven billion, five hundred sixty-six million, nine hundred eighty-seven thousand, nine hundred thirty-two".