6605116855 has 4 divisors (see below), whose sum is σ = 7926140232. Its totient is φ = 5284093480.

The previous prime is 6605116849. The next prime is 6605116883. The reversal of 6605116855 is 5586115066.

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

It is not a de Polignac number, because 6605116855 - 2¹⁹ = 6604592567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 660511681 + ... + 660511690.

It is an arithmetic number, because the mean of its divisors is an integer number (1981535058).

Almost surely, 2^6605116855 is an apocalyptic number.

6605116855 is a deficient number, since it is larger than the sum of its proper divisors (1321023377).

6605116855 is a wasteful number, since it uses less digits than its factorization.

6605116855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321023376.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 6605116855 is about 81271.8700104778. The cubic root of 6605116855 is about 1876.2620817263.

The spelling of 6605116855 in words is "six billion, six hundred five million, one hundred sixteen thousand, eight hundred fifty-five".