2216523368 has 16 divisors (see below), whose sum is σ = 4162278660. Its totient is φ = 1106582400.

The previous prime is 2216523367. The next prime is 2216523433. The reversal of 2216523368 is 8633256122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1773925924 + 442597444 = 42118^2 + 21038^2 .

It is not an unprimeable number, because it can be changed into a prime (2216523367) 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, 204293 + ... + 214868.

Almost surely, 2^2216523368 is an apocalyptic number.

It is an amenable number.

2216523368 is a deficient number, since it is larger than the sum of its proper divisors (1945755292).

2216523368 is a wasteful number, since it uses less digits than its factorization.

2216523368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419828 (or 419824 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 2216523368 is about 47079.9677994792. The cubic root of 2216523368 is about 1303.8394124575.

The spelling of 2216523368 in words is "two billion, two hundred sixteen million, five hundred twenty-three thousand, three hundred sixty-eight".