556089169566 has 16 divisors (see below), whose sum is σ = 1271060959104. Its totient is φ = 158882619864.

The previous prime is 556089169543. The next prime is 556089169619. The reversal of 556089169566 is 665961980655.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 556089169497 and 556089169506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6620109120 + ... + 6620109203.

It is an arithmetic number, because the mean of its divisors is an integer number (79441309944).

Almost surely, 2^556089169566 is an apocalyptic number.

556089169566 is an abundant number, since it is smaller than the sum of its proper divisors (714971789538).

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

556089169566 is a wasteful number, since it uses less digits than its factorization.

556089169566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240218335.

The product of its (nonzero) digits is 104976000, while the sum is 66.

The spelling of 556089169566 in words is "five hundred fifty-six billion, eighty-nine million, one hundred sixty-nine thousand, five hundred sixty-six".