2216429568 has 240 divisors, whose sum is σ = 6849722880. Its totient is φ = 713318400.

The previous prime is 2216429557. The next prime is 2216429581. The reversal of 2216429568 is 8659246122.

2216429568 is a `hidden beast` number, since 2 + 2 + 1 + 64 + 29 + 568 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5142313 + ... + 5142743.

It is an arithmetic number, because the mean of its divisors is an integer number (28540512).

Almost surely, 2^2216429568 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 2216429568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3424861440).

2216429568 is an abundant number, since it is smaller than the sum of its proper divisors (4633293312).

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

2216429568 is an equidigital number, since it uses as much as digits as its factorization.

2216429568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 467 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2216429568 is about 47078.9716115380. The cubic root of 2216429568 is about 1303.8210200111.

The spelling of 2216429568 in words is "two billion, two hundred sixteen million, four hundred twenty-nine thousand, five hundred sixty-eight".