6650664166 has 8 divisors (see below), whose sum is σ = 9977320080. Its totient is φ = 3324890808.

The previous prime is 6650664157. The next prime is 6650664169. The reversal of 6650664166 is 6614660566.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650664169) 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, 201466 + ... + 232141.

It is an arithmetic number, because the mean of its divisors is an integer number (1247165010).

Almost surely, 2^6650664166 is an apocalyptic number.

6650664166 is a deficient number, since it is larger than the sum of its proper divisors (3326655914).

6650664166 is a wasteful number, since it uses less digits than its factorization.

6650664166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441278.

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 6650664166 is about 81551.6043128521. The cubic root of 6650664166 is about 1880.5649582821.

The spelling of 6650664166 in words is "six billion, six hundred fifty million, six hundred sixty-four thousand, one hundred sixty-six".