210606809216 has 64 divisors (see below), whose sum is σ = 438165806400. Its totient is φ = 100643220480.

The previous prime is 210606809201. The next prime is 210606809219. The reversal of 210606809216 is 612908606012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (210606809219) 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 7 ways as a sum of consecutive naturals, for example, 3678086 + ... + 3734906.

It is an arithmetic number, because the mean of its divisors is an integer number (6846340725).

Almost surely, 2^210606809216 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 210606809216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219082903200).

210606809216 is an abundant number, since it is smaller than the sum of its proper divisors (227558997184).

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

210606809216 is a wasteful number, since it uses less digits than its factorization.

210606809216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58117 (or 58105 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 210606809216 in words is "two hundred ten billion, six hundred six million, eight hundred nine thousand, two hundred sixteen".