9664759553 has 2 divisors, whose sum is σ = 9664759554. Its totient is φ = 9664759552.

The previous prime is 9664759549. The next prime is 9664759579. The reversal of 9664759553 is 3559574669.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5357068864 + 4307690689 = 73192^2 + 65633^2 .

It is a cyclic number.

It is not a de Polignac number, because 9664759553 - 2² = 9664759549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9664759492 and 9664759501.

It is not a weakly prime, because it can be changed into another prime (9664759543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832379776 + 4832379777.

It is an arithmetic number, because the mean of its divisors is an integer number (4832379777).

Almost surely, 2^9664759553 is an apocalyptic number.

It is an amenable number.

9664759553 is a deficient number, since it is larger than the sum of its proper divisors (1).

9664759553 is an equidigital number, since it uses as much as digits as its factorization.

9664759553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618000, while the sum is 59.

The square root of 9664759553 is about 98309.5089653081. The cubic root of 9664759553 is about 2130.0854112120.

The spelling of 9664759553 in words is "nine billion, six hundred sixty-four million, seven hundred fifty-nine thousand, five hundred fifty-three".