9916860068209 has 8 divisors (see below), whose sum is σ = 9929651790240. Its totient is φ = 9904070281056.

The previous prime is 9916860068197. The next prime is 9916860068231. The reversal of 9916860068209 is 9028600686199.

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 9916860068209 - 2⁵ = 9916860068177 is a prime.

It is a super-2 number, since 2×9916860068209² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9916860068009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9917542 + ... + 10871584.

It is an arithmetic number, because the mean of its divisors is an integer number (1241206473780).

Almost surely, 2^{9916860068209} is an apocalyptic number.

It is an amenable number.

9916860068209 is a deficient number, since it is larger than the sum of its proper divisors (12791722031).

9916860068209 is a wasteful number, since it uses less digits than its factorization.

9916860068209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967439.

The product of its (nonzero) digits is 20155392, while the sum is 64.

The spelling of 9916860068209 in words is "nine trillion, nine hundred sixteen billion, eight hundred sixty million, sixty-eight thousand, two hundred nine".