2182166652 has 24 divisors (see below), whose sum is σ = 5141159296. Its totient is φ = 720326448.

The previous prime is 2182166639. The next prime is 2182166731. The reversal of 2182166652 is 2566612812.

It is a self number, because there is not a number n which added to its sum of digits gives 2182166652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881518 + ... + 883989.

Almost surely, 2^2182166652 is an apocalyptic number.

It is an amenable number.

2182166652 is an abundant number, since it is smaller than the sum of its proper divisors (2958992644).

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

2182166652 is a wasteful number, since it uses less digits than its factorization.

2182166652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765617 (or 1765615 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 2182166652 is about 46713.6666512060. Note that the first 4 decimals coincide. The cubic root of 2182166652 is about 1297.0676810821.

The spelling of 2182166652 in words is "two billion, one hundred eighty-two million, one hundred sixty-six thousand, six hundred fifty-two".