9911722606 has 16 divisors (see below), whose sum is σ = 15135984864. Its totient is φ = 4866977664.

The previous prime is 9911722589. The next prime is 9911722607. The reversal of 9911722606 is 6062271199.

It is a happy number.

9911722606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9911722607) 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 7 ways as a sum of consecutive naturals, for example, 111666 + ... + 179701.

It is an arithmetic number, because the mean of its divisors is an integer number (945999054).

Almost surely, 2^9911722606 is an apocalyptic number.

9911722606 is a deficient number, since it is larger than the sum of its proper divisors (5224262258).

9911722606 is a wasteful number, since it uses less digits than its factorization.

9911722606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291675.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 9911722606 is about 99557.6345942389. The cubic root of 9911722606 is about 2148.0763472349.

The spelling of 9911722606 in words is "nine billion, nine hundred eleven million, seven hundred twenty-two thousand, six hundred six".