9996644111 has 2 divisors, whose sum is σ = 9996644112. Its totient is φ = 9996644110.

The previous prime is 9996644107. The next prime is 9996644129. The reversal of 9996644111 is 1114466999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9996644111 - 2² = 9996644107 is a prime.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9996644111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9996644311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998322055 + 4998322056.

It is an arithmetic number, because the mean of its divisors is an integer number (4998322056).

Almost surely, 2^9996644111 is an apocalyptic number.

9996644111 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996644111 is an equidigital number, since it uses as much as digits as its factorization.

9996644111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 50.

The square root of 9996644111 is about 99983.2191470149. The cubic root of 9996644111 is about 2154.1936616118.

The spelling of 9996644111 in words is "nine billion, nine hundred ninety-six million, six hundred forty-four thousand, one hundred eleven".