11566987948 has 12 divisors (see below), whose sum is σ = 20246024232. Its totient is φ = 5782409600.

The previous prime is 11566987931. The next prime is 11566987963. The reversal of 11566987948 is 84978966511.

11566987948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11566987948.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 246853 + ... + 289948.

It is an arithmetic number, because the mean of its divisors is an integer number (1687168686).

Almost surely, 2^11566987948 is an apocalyptic number.

It is an amenable number.

11566987948 is a deficient number, since it is larger than the sum of its proper divisors (8679036284).

11566987948 is a wasteful number, since it uses less digits than its factorization.

11566987948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542192 (or 542190 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 64.

The spelling of 11566987948 in words is "eleven billion, five hundred sixty-six million, nine hundred eighty-seven thousand, nine hundred forty-eight".