556666330 has 16 divisors (see below), whose sum is σ = 1093090464. Its totient is φ = 202424080.

The previous prime is 556666301. The next prime is 556666333. The reversal of 556666330 is 33666655.

It is not an unprimeable number, because it can be changed into a prime (556666333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2530192 + ... + 2530411.

It is an arithmetic number, because the mean of its divisors is an integer number (68318154).

Almost surely, 2^556666330 is an apocalyptic number.

556666330 is a deficient number, since it is larger than the sum of its proper divisors (536424134).

556666330 is a wasteful number, since it uses less digits than its factorization.

556666330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060621.

The product of its (nonzero) digits is 291600, while the sum is 40.

The square root of 556666330 is about 23593.7773576000. Note that the first 3 decimals coincide. The cubic root of 556666330 is about 822.6182077745.

The spelling of 556666330 in words is "five hundred fifty-six million, six hundred sixty-six thousand, three hundred thirty".