97516320057856 has 160 divisors (see below), whose sum is σ = 223916150734848. Its totient is φ = 41560657735680.

The previous prime is 97516320057847. The next prime is 97516320057869. The reversal of 97516320057856 is 65875002361579.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538129441 + ... + 538310623.

Almost surely, 2^{97516320057856} 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 97516320057856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111958075367424).

97516320057856 is an abundant number, since it is smaller than the sum of its proper divisors (126399830676992).

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

97516320057856 is a wasteful number, since it uses less digits than its factorization.

97516320057856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182042 (or 182026 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 64.

The spelling of 97516320057856 in words is "ninety-seven trillion, five hundred sixteen billion, three hundred twenty million, fifty-seven thousand, eight hundred fifty-six".