6646110140 has 12 divisors (see below), whose sum is σ = 13956831336. Its totient is φ = 2658444048.

The previous prime is 6646110139. The next prime is 6646110157. The reversal of 6646110140 is 410116466.

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 3 ways as a sum of consecutive naturals, for example, 166152734 + ... + 166152773.

It is an arithmetic number, because the mean of its divisors is an integer number (1163069278).

Almost surely, 2^6646110140 is an apocalyptic number.

It is an amenable number.

6646110140 is an abundant number, since it is smaller than the sum of its proper divisors (7310721196).

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

6646110140 is a wasteful number, since it uses less digits than its factorization.

6646110140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332305516 (or 332305514 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6646110140 is about 81523.6784008180. The cubic root of 6646110140 is about 1880.1356228552.

The spelling of 6646110140 in words is "six billion, six hundred forty-six million, one hundred ten thousand, one hundred forty".