9666116669 has 8 divisors (see below), whose sum is σ = 10717721760. Its totient is φ = 8643322800.

The previous prime is 9666116651. The next prime is 9666116687.

9666116669 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (9666116651) and next prime (9666116687).

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 9666116669 - 2²⁰ = 9665068093 is a prime.

It is a super-2 number, since 2×9666116669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9666116609) 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, 7202099 + ... + 7203440.

It is an arithmetic number, because the mean of its divisors is an integer number (1339715220).

Almost surely, 2^9666116669 is an apocalyptic number.

It is an amenable number.

9666116669 is a deficient number, since it is larger than the sum of its proper divisors (1051605091).

9666116669 is a wasteful number, since it uses less digits than its factorization.

9666116669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14405611.

The product of its digits is 3779136, while the sum is 56.

The square root of 9666116669 is about 98316.4109851453. The cubic root of 9666116669 is about 2130.1851080430.

The spelling of 9666116669 in words is "nine billion, six hundred sixty-six million, one hundred sixteen thousand, six hundred sixty-nine".