6646110166 has 16 divisors (see below), whose sum is σ = 10036510704. Its totient is φ = 3300632064.

The previous prime is 6646110157. The next prime is 6646110167. The reversal of 6646110166 is 6610116466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646110167) 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 7 ways as a sum of consecutive naturals, for example, 618310 + ... + 628966.

It is an arithmetic number, because the mean of its divisors is an integer number (627281919).

Almost surely, 2^6646110166 is an apocalyptic number.

6646110166 is a deficient number, since it is larger than the sum of its proper divisors (3390400538).

6646110166 is a wasteful number, since it uses less digits than its factorization.

6646110166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12735.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 6646110166 is about 81523.6785602809. The cubic root of 6646110166 is about 1880.1356253069.

The spelling of 6646110166 in words is "six billion, six hundred forty-six million, one hundred ten thousand, one hundred sixty-six".