216610716 has 48 divisors (see below), whose sum is σ = 608034560. Its totient is φ = 58631040.

The previous prime is 216610663. The next prime is 216610763. The reversal of 216610716 is 617016612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66265 + ... + 69456.

Almost surely, 2^216610716 is an apocalyptic number.

It is an amenable number.

216610716 is an abundant number, since it is smaller than the sum of its proper divisors (391423844).

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

216610716 is a wasteful number, since it uses less digits than its factorization.

216610716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135754 (or 135752 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 216610716 is about 14717.7007715200. The cubic root of 216610716 is about 600.5649456715.

The spelling of 216610716 in words is "two hundred sixteen million, six hundred ten thousand, seven hundred sixteen".