97515517560 has 128 divisors (see below), whose sum is σ = 296665804800. Its totient is φ = 25638912000.

The previous prime is 97515517543. The next prime is 97515517579. The reversal of 97515517560 is 6571551579.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7112632 + ... + 7126328.

It is an arithmetic number, because the mean of its divisors is an integer number (2317701600).

Almost surely, 2^97515517560 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 97515517560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148332902400).

97515517560 is an abundant number, since it is smaller than the sum of its proper divisors (199150287240).

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

97515517560 is a wasteful number, since it uses less digits than its factorization.

97515517560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14541 (or 14537 counting only the distinct ones).

The product of its (nonzero) digits is 1653750, while the sum is 51.

The spelling of 97515517560 in words is "ninety-seven billion, five hundred fifteen million, five hundred seventeen thousand, five hundred sixty".