9910664217 has 6 divisors (see below), whose sum is σ = 14315403882. Its totient is φ = 6607109472.

The previous prime is 9910664191. The next prime is 9910664243. The reversal of 9910664217 is 7124660199.

9910664217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9910664191) and next prime (9910664243).

It can be written as a sum of positive squares in only one way, i.e., 7857758736 + 2052905481 = 88644^2 + 45309^2 .

It is not a de Polignac number, because 9910664217 - 2⁷ = 9910664089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9910664287) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 550592448 + ... + 550592465.

It is an arithmetic number, because the mean of its divisors is an integer number (2385900647).

Almost surely, 2^9910664217 is an apocalyptic number.

It is an amenable number.

9910664217 is a deficient number, since it is larger than the sum of its proper divisors (4404739665).

9910664217 is a wasteful number, since it uses less digits than its factorization.

9910664217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101184919 (or 1101184916 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9910664217 is about 99552.3189935825. The cubic root of 9910664217 is about 2147.9998862135. Note that the first 3 decimals are identical.

The spelling of 9910664217 in words is "nine billion, nine hundred ten million, six hundred sixty-four thousand, two hundred seventeen".