66305166 has 8 divisors (see below), whose sum is σ = 132610344. Its totient is φ = 22101720.

The previous prime is 66305137. The next prime is 66305167. The reversal of 66305166 is 66150366.

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

66305166 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66305167) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5525425 + ... + 5525436.

It is an arithmetic number, because the mean of its divisors is an integer number (16576293).

Almost surely, 2^66305166 is an apocalyptic number.

66305166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66305166 is a wasteful number, since it uses less digits than its factorization.

66305166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11050866.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 66305166 is about 8142.7984133220. The cubic root of 66305166 is about 404.7458976096.

The spelling of 66305166 in words is "sixty-six million, three hundred five thousand, one hundred sixty-six".