66206 has 8 divisors (see below), whose sum is σ = 113520. Its totient is φ = 28368.

The previous prime is 66191. The next prime is 66221. The reversal of 66206 is 60266.

It is an interprime number because it is at equal distance from previous prime (66191) and next prime (66221).

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 66206.

It is an unprimeable number.

66206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351 + ... + 2378.

It is an arithmetic number, because the mean of its divisors is an integer number (14190).

2⁶⁶²⁰⁶ is an apocalyptic number.

66206 is a deficient number, since it is larger than the sum of its proper divisors (47314).

66206 is a wasteful number, since it uses less digits than its factorization.

66206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 66206 is about 257.3052661723. The cubic root of 66206 is about 40.4544017624.

It can be divided in two parts, 66 and 206, that added together give a palindrome (272).

The spelling of 66206 in words is "sixty-six thousand, two hundred six".