9643136161 has 2 divisors, whose sum is σ = 9643136162. Its totient is φ = 9643136160.

The previous prime is 9643136159. The next prime is 9643136201. The reversal of 9643136161 is 1616313469.

It is a happy number.

It is an a-pointer prime, because the next prime (9643136201) can be obtained adding 9643136161 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9200454561 + 442681600 = 95919^2 + 21040^2 .

It is a cyclic number.

It is not a de Polignac number, because 9643136161 - 2¹ = 9643136159 is a prime.

Together with 9643136159, it forms a pair of twin primes.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4821568080 + 4821568081.

It is an arithmetic number, because the mean of its divisors is an integer number (4821568081).

Almost surely, 2^9643136161 is an apocalyptic number.

It is an amenable number.

9643136161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9643136161 is an equidigital number, since it uses as much as digits as its factorization.

9643136161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 9643136161 is about 98199.4712867641. The cubic root of 9643136161 is about 2128.4956470525.

The spelling of 9643136161 in words is "nine billion, six hundred forty-three million, one hundred thirty-six thousand, one hundred sixty-one".