2166214332 has 12 divisors (see below), whose sum is σ = 5054500136. Its totient is φ = 722071440.

The previous prime is 2166214291. The next prime is 2166214333. The reversal of 2166214332 is 2334126612.

2166214332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2166214332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166214333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90258919 + ... + 90258942.

Almost surely, 2^2166214332 is an apocalyptic number.

It is an amenable number.

2166214332 is an abundant number, since it is smaller than the sum of its proper divisors (2888285804).

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

2166214332 is a wasteful number, since it uses less digits than its factorization.

2166214332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180517868 (or 180517866 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 2166214332 is about 46542.6077051985. The cubic root of 2166214332 is about 1293.8992911899.

The spelling of 2166214332 in words is "two billion, one hundred sixty-six million, two hundred fourteen thousand, three hundred thirty-two".