556661066 has 32 divisors (see below), whose sum is σ = 911167488. Its totient is φ = 253532160.

The previous prime is 556661057. The next prime is 556661071. The reversal of 556661066 is 660166655.

556661066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868106 + ... + 868746.

It is an arithmetic number, because the mean of its divisors is an integer number (28473984).

Almost surely, 2^556661066 is an apocalyptic number.

556661066 is a deficient number, since it is larger than the sum of its proper divisors (354506422).

556661066 is a wasteful number, since it uses less digits than its factorization.

556661066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

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

The square root of 556661066 is about 23593.6658024988. The cubic root of 556661066 is about 822.6156147934.

The spelling of 556661066 in words is "five hundred fifty-six million, six hundred sixty-one thousand, sixty-six".