97644232320 has 128 divisors (see below), whose sum is σ = 316343681280. Its totient is φ = 25611571200.

The previous prime is 97644232241. The next prime is 97644232331. The reversal of 97644232320 is 2323244679.

97644232320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×97644232320² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 299736 + ... + 533975.

It is an arithmetic number, because the mean of its divisors is an integer number (2471435010).

Almost surely, 2^97644232320 is an apocalyptic number.

It is an amenable number.

97644232320 is an abundant number, since it is smaller than the sum of its proper divisors (218699448960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97644232320 is a wasteful number, since it uses less digits than its factorization.

97644232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833794 (or 833782 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

Adding to 97644232320 its reverse (2323244679), we get a palindrome (99967476999).

The spelling of 97644232320 in words is "ninety-seven billion, six hundred forty-four million, two hundred thirty-two thousand, three hundred twenty".