5666116611 has 4 divisors (see below), whose sum is σ = 7554822152. Its totient is φ = 3777411072.

The previous prime is 5666116607. The next prime is 5666116661. The reversal of 5666116611 is 1166116665.

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

It is not a de Polignac number, because 5666116611 - 2² = 5666116607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5666116611.

It is not an unprimeable number, because it can be changed into a prime (5666116661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 944352766 + ... + 944352771.

It is an arithmetic number, because the mean of its divisors is an integer number (1888705538).

Almost surely, 2^5666116611 is an apocalyptic number.

5666116611 is a deficient number, since it is larger than the sum of its proper divisors (1888705541).

5666116611 is a wasteful number, since it uses less digits than its factorization.

5666116611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888705540.

The product of its digits is 38880, while the sum is 39.

The square root of 5666116611 is about 75273.6116510959. The cubic root of 5666116611 is about 1782.7693930090.

The spelling of 5666116611 in words is "five billion, six hundred sixty-six million, one hundred sixteen thousand, six hundred eleven".