216683065 has 8 divisors (see below), whose sum is σ = 260212680. Its totient is φ = 173217792.

The previous prime is 216682993. The next prime is 216683081. The reversal of 216683065 is 560386612.

216683065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 710649 + 215972416 = 843^2 + 14696^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216683065 - 2²⁷ = 82465337 is a prime.

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, 8334 + ... + 22423.

It is an arithmetic number, because the mean of its divisors is an integer number (32526585).

Almost surely, 2^216683065 is an apocalyptic number.

It is an amenable number.

216683065 is a deficient number, since it is larger than the sum of its proper divisors (43529615).

216683065 is a wasteful number, since it uses less digits than its factorization.

216683065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32171.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 216683065 is about 14720.1584570276. The cubic root of 216683065 is about 600.6318020693.

The spelling of 216683065 in words is "two hundred sixteen million, six hundred eighty-three thousand, sixty-five".