217166006 has 8 divisors (see below), whose sum is σ = 325889784. Its totient is φ = 108536080.

The previous prime is 217165981. The next prime is 217166009. The reversal of 217166006 is 600661712.

217166006 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×217166006² = 94322148323984072, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 217166006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217166009) 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, 17360 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (40736223).

Almost surely, 2^217166006 is an apocalyptic number.

217166006 is a deficient number, since it is larger than the sum of its proper divisors (108723778).

217166006 is a wasteful number, since it uses less digits than its factorization.

217166006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46926.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 217166006 is about 14736.5533962321. The cubic root of 217166006 is about 601.0776983035.

The spelling of 217166006 in words is "two hundred seventeen million, one hundred sixty-six thousand, six".