216662006 has 8 divisors (see below), whose sum is σ = 354537864. Its totient is φ = 98482720.

The previous prime is 216661981. The next prime is 216662009. The reversal of 216662006 is 600266612.

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

It is a self number, because there is not a number n which added to its sum of digits gives 216662006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216662009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4924115 + ... + 4924158.

It is an arithmetic number, because the mean of its divisors is an integer number (44317233).

Almost surely, 2^216662006 is an apocalyptic number.

216662006 is a deficient number, since it is larger than the sum of its proper divisors (137875858).

216662006 is a wasteful number, since it uses less digits than its factorization.

216662006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848286.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 216662006 is about 14719.4431280535. The cubic root of 216662006 is about 600.6123433653.

The spelling of 216662006 in words is "two hundred sixteen million, six hundred sixty-two thousand, six".