9951663097 has 2 divisors, whose sum is σ = 9951663098. Its totient is φ = 9951663096.

The previous prime is 9951663089. The next prime is 9951663107. The reversal of 9951663097 is 7903661599.

9951663097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7299310096 + 2652353001 = 85436^2 + 51501^2 .

It is a cyclic number.

It is not a de Polignac number, because 9951663097 - 2³ = 9951663089 is a prime.

It is not a weakly prime, because it can be changed into another prime (9951663047) 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 as a sum of consecutive naturals, namely, 4975831548 + 4975831549.

It is an arithmetic number, because the mean of its divisors is an integer number (4975831549).

Almost surely, 2^9951663097 is an apocalyptic number.

It is an amenable number.

9951663097 is a deficient number, since it is larger than the sum of its proper divisors (1).

9951663097 is an equidigital number, since it uses as much as digits as its factorization.

9951663097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2755620, while the sum is 55.

The square root of 9951663097 is about 99758.0227199798. The cubic root of 9951663097 is about 2150.9577918958.

The spelling of 9951663097 in words is "nine billion, nine hundred fifty-one million, six hundred sixty-three thousand, ninety-seven".