216338065 has 8 divisors (see below), whose sum is σ = 263262528. Its totient is φ = 170632560.

The previous prime is 216338063. The next prime is 216338081. The reversal of 216338065 is 560833612.

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

It is not a de Polignac number, because 216338065 - 2¹ = 216338063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216338065.

It is not an unprimeable number, because it can be changed into a prime (216338063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304347 + ... + 305056.

It is an arithmetic number, because the mean of its divisors is an integer number (32907816).

Almost surely, 2^216338065 is an apocalyptic number.

It is an amenable number.

216338065 is a deficient number, since it is larger than the sum of its proper divisors (46924463).

216338065 is an equidigital number, since it uses as much as digits as its factorization.

216338065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609479.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 216338065 is about 14708.4351648977. The cubic root of 216338065 is about 600.3128599842.

The spelling of 216338065 in words is "two hundred sixteen million, three hundred thirty-eight thousand, sixty-five".