556166494 has 12 divisors (see below), whose sum is σ = 903359736. Its totient is φ = 256692072.

The previous prime is 556166477. The next prime is 556166539. The reversal of 556166494 is 494661655.

556166494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 822394 + ... + 823069.

It is an arithmetic number, because the mean of its divisors is an integer number (75279978).

Almost surely, 2^556166494 is an apocalyptic number.

556166494 is a deficient number, since it is larger than the sum of its proper divisors (347193242).

556166494 is a wasteful number, since it uses less digits than its factorization.

556166494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645491 (or 1645478 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 556166494 is about 23583.1824400355. The cubic root of 556166494 is about 822.3719218042.

The spelling of 556166494 in words is "five hundred fifty-six million, one hundred sixty-six thousand, four hundred ninety-four".