216635006 has 16 divisors (see below), whose sum is σ = 383354880. Its totient is φ = 89848440.

The previous prime is 216634997. The next prime is 216635011. The reversal of 216635006 is 600536612.

It is a self number, because there is not a number n which added to its sum of digits gives 216635006.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 249146 + ... + 250013.

It is an arithmetic number, because the mean of its divisors is an integer number (23959680).

Almost surely, 2^216635006 is an apocalyptic number.

216635006 is a deficient number, since it is larger than the sum of its proper divisors (166719874).

216635006 is a wasteful number, since it uses less digits than its factorization.

216635006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499199.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 216635006 is about 14718.5259452161. The cubic root of 216635006 is about 600.5873932794.

The spelling of 216635006 in words is "two hundred sixteen million, six hundred thirty-five thousand, six".