43232621166 has 96 divisors (see below), whose sum is σ = 112761941760. Its totient is φ = 11694233088.

The previous prime is 43232621161. The next prime is 43232621183. The reversal of 43232621166 is 66112623234.

43232621166 is a `hidden beast` number, since 4 + 3 + 23 + 2 + 621 + 1 + 6 + 6 = 666.

43232621166 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 43232621166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43232621161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4177150 + ... + 4187486.

It is an arithmetic number, because the mean of its divisors is an integer number (1174603560).

Almost surely, 2^43232621166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43232621166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56380970880).

43232621166 is an abundant number, since it is smaller than the sum of its proper divisors (69529320594).

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

43232621166 is a wasteful number, since it uses less digits than its factorization.

43232621166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118 (or 12115 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The spelling of 43232621166 in words is "forty-three billion, two hundred thirty-two million, six hundred twenty-one thousand, one hundred sixty-six".