9664612824553 has 4 divisors (see below), whose sum is σ = 9686429106768. Its totient is φ = 9642796542340.

The previous prime is 9664612824523. The next prime is 9664612824569. The reversal of 9664612824553 is 3554282164669.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9664612824553 - 2⁵ = 9664612824521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9664612824491 and 9664612824500.

It is not an unprimeable number, because it can be changed into a prime (9664612824523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10908140443 + ... + 10908141328.

It is an arithmetic number, because the mean of its divisors is an integer number (2421607276692).

Almost surely, 2^{9664612824553} is an apocalyptic number.

It is an amenable number.

9664612824553 is a deficient number, since it is larger than the sum of its proper divisors (21816282215).

9664612824553 is a wasteful number, since it uses less digits than its factorization.

9664612824553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21816282214.

The product of its digits is 74649600, while the sum is 61.

The spelling of 9664612824553 in words is "nine trillion, six hundred sixty-four billion, six hundred twelve million, eight hundred twenty-four thousand, five hundred fifty-three".