6610050065 has 4 divisors (see below), whose sum is σ = 7932060084. Its totient is φ = 5288040048.

The previous prime is 6610050047. The next prime is 6610050071. The reversal of 6610050065 is 5600500166.

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 1849602049 + 4760448016 = 43007^2 + 68996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6610050065 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 3 ways as a sum of consecutive naturals, for example, 661005002 + ... + 661005011.

It is an arithmetic number, because the mean of its divisors is an integer number (1983015021).

Almost surely, 2^6610050065 is an apocalyptic number.

It is an amenable number.

6610050065 is a deficient number, since it is larger than the sum of its proper divisors (1322010019).

6610050065 is a wasteful number, since it uses less digits than its factorization.

6610050065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322010018.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6610050065 is about 81302.2143917372. The cubic root of 6610050065 is about 1876.7290778274.

The spelling of 6610050065 in words is "six billion, six hundred ten million, fifty thousand, sixty-five".