11566869944 has 16 divisors (see below), whose sum is σ = 24786150000. Its totient is φ = 4957229952.

The previous prime is 11566869943. The next prime is 11566869971. The reversal of 11566869944 is 44996866511.

11566869944 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 (11566869943) 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 3 ways as a sum of consecutive naturals, for example, 103275569 + ... + 103275680.

It is an arithmetic number, because the mean of its divisors is an integer number (1549134375).

Almost surely, 2^11566869944 is an apocalyptic number.

11566869944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11566869944 is an abundant number, since it is smaller than the sum of its proper divisors (13219280056).

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

11566869944 is a wasteful number, since it uses less digits than its factorization.

11566869944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206551262 (or 206551258 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 59.

The spelling of 11566869944 in words is "eleven billion, five hundred sixty-six million, eight hundred sixty-nine thousand, nine hundred forty-four".