216056576 has 36 divisors (see below), whose sum is σ = 432404112. Its totient is φ = 107744256.

The previous prime is 216056573. The next prime is 216056627. The reversal of 216056576 is 675650612.

216056576 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (216056573) 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, 123806 + ... + 125538.

Almost surely, 2^216056576 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 216056576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216202056).

216056576 is an abundant number, since it is smaller than the sum of its proper divisors (216347536).

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

216056576 is an equidigital number, since it uses as much as digits as its factorization.

216056576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 216056576 is about 14698.8630852866. The cubic root of 216056576 is about 600.0523806122.

The spelling of 216056576 in words is "two hundred sixteen million, fifty-six thousand, five hundred seventy-six".