6650166605 has 8 divisors (see below), whose sum is σ = 7981135200. Its totient is φ = 5319509776.

The previous prime is 6650166583. The next prime is 6650166623. The reversal of 6650166605 is 5066610566.

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

It is a cyclic number.

It is not a de Polignac number, because 6650166605 - 2¹⁰ = 6650165581 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28115 + ... + 118704.

It is an arithmetic number, because the mean of its divisors is an integer number (997641900).

Almost surely, 2^6650166605 is an apocalyptic number.

It is an amenable number.

6650166605 is a deficient number, since it is larger than the sum of its proper divisors (1330968595).

6650166605 is a wasteful number, since it uses less digits than its factorization.

6650166605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155883.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 6650166605 is about 81548.5536658989. The cubic root of 6650166605 is about 1880.5180597522.

The spelling of 6650166605 in words is "six billion, six hundred fifty million, one hundred sixty-six thousand, six hundred five".