216230616 has 96 divisors (see below), whose sum is σ = 708683040. Its totient is φ = 58143744.

The previous prime is 216230563. The next prime is 216230647. The reversal of 216230616 is 616032612.

216230616 is a `hidden beast` number, since 2 + 16 + 2 + 30 + 616 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 216230616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4051 + ... + 21186.

It is an arithmetic number, because the mean of its divisors is an integer number (7382115).

Almost surely, 2^216230616 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 216230616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354341520).

216230616 is an abundant number, since it is smaller than the sum of its proper divisors (492452424).

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

216230616 is a wasteful number, since it uses less digits than its factorization.

216230616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25273 (or 25266 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 216230616 is about 14704.7820793101. The cubic root of 216230616 is about 600.2134573842.

The spelling of 216230616 in words is "two hundred sixteen million, two hundred thirty thousand, six hundred sixteen".