2211666204 has 96 divisors (see below), whose sum is σ = 5992310016. Its totient is φ = 627450880.

The previous prime is 2211666167. The next prime is 2211666211. The reversal of 2211666204 is 4026661122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439567 + ... + 444569.

It is an arithmetic number, because the mean of its divisors is an integer number (62419896).

Almost surely, 2^2211666204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211666204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2996155008).

2211666204 is an abundant number, since it is smaller than the sum of its proper divisors (3780643812).

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

2211666204 is a wasteful number, since it uses less digits than its factorization.

2211666204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235 (or 5233 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2211666204 is about 47028.3553188925. The cubic root of 2211666204 is about 1302.8863292815.

The spelling of 2211666204 in words is "two billion, two hundred eleven million, six hundred sixty-six thousand, two hundred four".