556166606 has 4 divisors (see below), whose sum is σ = 834249912. Its totient is φ = 278083302.

The previous prime is 556166581. The next prime is 556166609. The reversal of 556166606 is 606661655.

556166606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556166609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139041650 + ... + 139041653.

It is an arithmetic number, because the mean of its divisors is an integer number (208562478).

Almost surely, 2^556166606 is an apocalyptic number.

556166606 is a deficient number, since it is larger than the sum of its proper divisors (278083306).

556166606 is a wasteful number, since it uses less digits than its factorization.

556166606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278083305.

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

The square root of 556166606 is about 23583.1848146089. The cubic root of 556166606 is about 822.3719770069.

The spelling of 556166606 in words is "five hundred fifty-six million, one hundred sixty-six thousand, six hundred six".