6666560626 has 24 divisors (see below), whose sum is σ = 11403859824. Its totient is φ = 2898499560.

The previous prime is 6666560611. The next prime is 6666560653. The reversal of 6666560626 is 6260656666.

It is a self number, because there is not a number n which added to its sum of digits gives 6666560626.

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 11 ways as a sum of consecutive naturals, for example, 274776 + ... + 298051.

It is an arithmetic number, because the mean of its divisors is an integer number (475160826).

Almost surely, 2^6666560626 is an apocalyptic number.

6666560626 is a deficient number, since it is larger than the sum of its proper divisors (4737299198).

6666560626 is a wasteful number, since it uses less digits than its factorization.

6666560626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572886 (or 572863 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

The square root of 6666560626 is about 81649.0087263771. The cubic root of 6666560626 is about 1882.0620789004.

The spelling of 6666560626 in words is "six billion, six hundred sixty-six million, five hundred sixty thousand, six hundred twenty-six".