5056561066066 has 16 divisors (see below), whose sum is σ = 7719700704408. Its totient is φ = 2483440588800.

The previous prime is 5056561066061. The next prime is 5056561066121. The reversal of 5056561066066 is 6606601656505.

It can be written as a sum of positive squares in 4 ways, for example, as 3075586450225 + 1980974615841 = 1753735^2 + 1407471^2 .

It is not an unprimeable number, because it can be changed into a prime (5056561066061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28182895 + ... + 28361746.

Almost surely, 2^{5056561066066} is an apocalyptic number.

5056561066066 is a deficient number, since it is larger than the sum of its proper divisors (2663139638342).

5056561066066 is a wasteful number, since it uses less digits than its factorization.

5056561066066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56545437.

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 5056561066066 in words is "five trillion, fifty-six billion, five hundred sixty-one million, sixty-six thousand, sixty-six".