216065606 has 16 divisors (see below), whose sum is σ = 341452800. Its totient is φ = 102257928.

The previous prime is 216065579. The next prime is 216065621. The reversal of 216065606 is 606560612.

216065606 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×216065606³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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, 67715 + ... + 70833.

It is an arithmetic number, because the mean of its divisors is an integer number (21340800).

Almost surely, 2^216065606 is an apocalyptic number.

216065606 is a deficient number, since it is larger than the sum of its proper divisors (125387194).

216065606 is a wasteful number, since it uses less digits than its factorization.

216065606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 216065606 is about 14699.1702486909. The cubic root of 216065606 is about 600.0607401471.

The spelling of 216065606 in words is "two hundred sixteen million, sixty-five thousand, six hundred six".