216680610 has 16 divisors (see below), whose sum is σ = 520033536. Its totient is φ = 57781488.

The previous prime is 216680599. The next prime is 216680641. The reversal of 216680610 is 16086612.

216680610 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 7222687 = 216680610 / (2 + 1 + 6 + 6 + 8 + 0 + 6 + 1 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3611314 + ... + 3611373.

It is an arithmetic number, because the mean of its divisors is an integer number (32502096).

Almost surely, 2^216680610 is an apocalyptic number.

216680610 is an abundant number, since it is smaller than the sum of its proper divisors (303352926).

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

216680610 is a wasteful number, since it uses less digits than its factorization.

216680610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222697.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 216680610 is about 14720.0750677434. The cubic root of 216680610 is about 600.6295336923.

The spelling of 216680610 in words is "two hundred sixteen million, six hundred eighty thousand, six hundred ten".