556560665066 has 32 divisors (see below), whose sum is σ = 988947505152. Its totient is φ = 229966616880.

The previous prime is 556560665057. The next prime is 556560665093. The reversal of 556560665066 is 660566065655.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6268130 + ... + 6356301.

It is an arithmetic number, because the mean of its divisors is an integer number (30904609536).

Almost surely, 2^556560665066 is an apocalyptic number.

556560665066 is a deficient number, since it is larger than the sum of its proper divisors (432386840086).

556560665066 is a wasteful number, since it uses less digits than its factorization.

556560665066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12624554.

The product of its (nonzero) digits is 29160000, while the sum is 56.

The spelling of 556560665066 in words is "five hundred fifty-six billion, five hundred sixty million, six hundred sixty-five thousand, sixty-six".