216650107 has 4 divisors (see below), whose sum is σ = 216689976. Its totient is φ = 216610240.

The previous prime is 216650099. The next prime is 216650111. The reversal of 216650107 is 701056612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216650107 - 2³ = 216650099 is a prime.

It is a super-2 number, since 2×216650107² = 93874537726222898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216650117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10198 + ... + 23179.

It is an arithmetic number, because the mean of its divisors is an integer number (54172494).

Almost surely, 2^216650107 is an apocalyptic number.

216650107 is a deficient number, since it is larger than the sum of its proper divisors (39869).

216650107 is an equidigital number, since it uses as much as digits as its factorization.

216650107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39868.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 216650107 is about 14719.0389292236. The cubic root of 216650107 is about 600.6013480255.

The spelling of 216650107 in words is "two hundred sixteen million, six hundred fifty thousand, one hundred seven".