6660707117 has 8 divisors (see below), whose sum is σ = 7078735800. Its totient is φ = 6245592064.

The previous prime is 6660707101. The next prime is 6660707191. The reversal of 6660707117 is 7117070666.

It can be written as a sum of positive squares in 4 ways, for example, as 194295721 + 6466411396 = 13939^2 + 80414^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6660707117 - 2⁴ = 6660707101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660707017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723692 + ... + 732837.

It is an arithmetic number, because the mean of its divisors is an integer number (884841975).

Almost surely, 2^6660707117 is an apocalyptic number.

It is an amenable number.

6660707117 is a deficient number, since it is larger than the sum of its proper divisors (418028683).

6660707117 is a wasteful number, since it uses less digits than its factorization.

6660707117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456815.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 6660707117 is about 81613.1552937393. The cubic root of 6660707117 is about 1881.5110754735.

The spelling of 6660707117 in words is "six billion, six hundred sixty million, seven hundred seven thousand, one hundred seventeen".