11321432166 has 32 divisors (see below), whose sum is σ = 26154327168. Its totient is φ = 3228928640.

The previous prime is 11321432147. The next prime is 11321432173. The reversal of 11321432166 is 66123412311.

11321432166 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 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 15 ways as a sum of consecutive naturals, for example, 5044080 + ... + 5046323.

It is an arithmetic number, because the mean of its divisors is an integer number (817322724).

Almost surely, 2^11321432166 is an apocalyptic number.

11321432166 is an abundant number, since it is smaller than the sum of its proper divisors (14832895002).

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

11321432166 is a wasteful number, since it uses less digits than its factorization.

11321432166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10090436.

The product of its digits is 5184, while the sum is 30.

Adding to 11321432166 its reverse (66123412311), we get a palindrome (77444844477).

The spelling of 11321432166 in words is "eleven billion, three hundred twenty-one million, four hundred thirty-two thousand, one hundred sixty-six".