2221566152 has 32 divisors (see below), whose sum is σ = 4488939000. Its totient is φ = 1024633344.

The previous prime is 2221566133. The next prime is 2221566161. The reversal of 2221566152 is 2516651222.

It can be written as a sum of positive squares in 4 ways, for example, as 949502596 + 1272063556 = 30814^2 + 35666^2 .

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, 163724 + ... + 176772.

Almost surely, 2^2221566152 is an apocalyptic number.

It is an amenable number.

2221566152 is an abundant number, since it is smaller than the sum of its proper divisors (2267372848).

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

2221566152 is a wasteful number, since it uses less digits than its factorization.

2221566152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14705 (or 14701 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 2221566152 is about 47133.4928898761. The cubic root of 2221566152 is about 1304.8274463454.

The spelling of 2221566152 in words is "two billion, two hundred twenty-one million, five hundred sixty-six thousand, one hundred fifty-two".