6559120966 has 4 divisors (see below), whose sum is σ = 9838681452. Its totient is φ = 3279560482.

The previous prime is 6559120963. The next prime is 6559120973. The reversal of 6559120966 is 6690219556.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6559120961) 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 as a sum of consecutive naturals, namely, 1639780240 + ... + 1639780243.

It is an arithmetic number, because the mean of its divisors is an integer number (2459670363).

Almost surely, 2^6559120966 is an apocalyptic number.

6559120966 is a deficient number, since it is larger than the sum of its proper divisors (3279560486).

6559120966 is a wasteful number, since it uses less digits than its factorization.

6559120966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279560485.

The product of its (nonzero) digits is 874800, while the sum is 49.

The square root of 6559120966 is about 80988.4001941019. The cubic root of 6559120966 is about 1871.8967063428.

The spelling of 6559120966 in words is "six billion, five hundred fifty-nine million, one hundred twenty thousand, nine hundred sixty-six".