6600320885 has 4 divisors (see below), whose sum is σ = 7920385068. Its totient is φ = 5280256704.

The previous prime is 6600320843. The next prime is 6600320953. The reversal of 6600320885 is 5880230066.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2005785796 + 4594535089 = 44786^2 + 67783^2 .

It is a cyclic number.

It is not a de Polignac number, because 6600320885 - 2¹⁸ = 6600058741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660032084 + ... + 660032093.

It is an arithmetic number, because the mean of its divisors is an integer number (1980096267).

Almost surely, 2^6600320885 is an apocalyptic number.

It is an amenable number.

6600320885 is a deficient number, since it is larger than the sum of its proper divisors (1320064183).

6600320885 is a wasteful number, since it uses less digits than its factorization.

6600320885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320064182.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 6600320885 is about 81242.3589330098. The cubic root of 6600320885 is about 1875.8078543111.

The spelling of 6600320885 in words is "six billion, six hundred million, three hundred twenty thousand, eight hundred eighty-five".