6726608065 has 8 divisors (see below), whose sum is σ = 8143363368. Its totient is φ = 5333664000.

The previous prime is 6726608047. The next prime is 6726608081. The reversal of 6726608065 is 5608066276.

It can be written as a sum of positive squares in 4 ways, for example, as 563730049 + 6162878016 = 23743^2 + 78504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6726608065 - 2⁵ = 6726608033 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 5952186 + ... + 5953315.

It is an arithmetic number, because the mean of its divisors is an integer number (1017920421).

Almost surely, 2^6726608065 is an apocalyptic number.

It is an amenable number.

6726608065 is a deficient number, since it is larger than the sum of its proper divisors (1416755303).

6726608065 is a wasteful number, since it uses less digits than its factorization.

6726608065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11905619.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 6726608065 is about 82015.9012935906. The cubic root of 6726608065 is about 1887.6959376729.

The spelling of 6726608065 in words is "six billion, seven hundred twenty-six million, six hundred eight thousand, sixty-five".