556414866 has 64 divisors (see below), whose sum is σ = 1416648960. Its totient is φ = 158578560.

The previous prime is 556414853. The next prime is 556414871. The reversal of 556414866 is 668414655.

556414866 is a `hidden beast` number, since 5 + 564 + 1 + 4 + 86 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171136 + ... + 174356.

It is an arithmetic number, because the mean of its divisors is an integer number (22135140).

Almost surely, 2^556414866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556414866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708324480).

556414866 is an abundant number, since it is smaller than the sum of its proper divisors (860234094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556414866 is a wasteful number, since it uses less digits than its factorization.

556414866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696 (or 3690 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 556414866 is about 23588.4477234090. The cubic root of 556414866 is about 822.4943214594.

The spelling of 556414866 in words is "five hundred fifty-six million, four hundred fourteen thousand, eight hundred sixty-six".