97322802608640 has 640 divisors, whose sum is σ = 367465385852928. Its totient is φ = 21503027773440.

The previous prime is 97322802608639. The next prime is 97322802608651. The reversal of 97322802608640 is 4680620822379.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1478205802 + ... + 1478271638.

Almost surely, 2^{97322802608640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97322802608640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183732692926464).

97322802608640 is an abundant number, since it is smaller than the sum of its proper divisors (270142583244288).

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

97322802608640 is a wasteful number, since it uses less digits than its factorization.

97322802608640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66788 (or 66772 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 97322802608640 in words is "ninety-seven trillion, three hundred twenty-two billion, eight hundred two million, six hundred eight thousand, six hundred forty".