9664334653 has 2 divisors, whose sum is σ = 9664334654. Its totient is φ = 9664334652.

The previous prime is 9664334611. The next prime is 9664334663. The reversal of 9664334653 is 3564334669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9239438884 + 424895769 = 96122^2 + 20613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9664334653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9664334597 and 9664334606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9664334663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832167326 + 4832167327.

It is an arithmetic number, because the mean of its divisors is an integer number (4832167327).

Almost surely, 2^9664334653 is an apocalyptic number.

It is an amenable number.

9664334653 is a deficient number, since it is larger than the sum of its proper divisors (1).

9664334653 is an equidigital number, since it uses as much as digits as its factorization.

9664334653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 49.

The square root of 9664334653 is about 98307.3479095027. The cubic root of 9664334653 is about 2130.0541951723.

The spelling of 9664334653 in words is "nine billion, six hundred sixty-four million, three hundred thirty-four thousand, six hundred fifty-three".