216206208 has 96 divisors (see below), whose sum is σ = 632899800. Its totient is φ = 70824960.

The previous prime is 216206201. The next prime is 216206209. The reversal of 216206208 is 802602612.

216206208 is a `hidden beast` number, since 2 + 16 + 20 + 620 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216206201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66378 + ... + 69558.

Almost surely, 2^216206208 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 216206208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316449900).

216206208 is an abundant number, since it is smaller than the sum of its proper divisors (416693592).

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

216206208 is a wasteful number, since it uses less digits than its factorization.

216206208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 216206208 is about 14703.9521217937. The cubic root of 216206208 is about 600.1908726063.

The spelling of 216206208 in words is "two hundred sixteen million, two hundred six thousand, two hundred eight".