97598971660 has 96 divisors (see below), whose sum is σ = 219055269888. Its totient is φ = 36399098880.

The previous prime is 97598971637. The next prime is 97598971699. The reversal of 97598971660 is 6617989579.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17655817 + ... + 17661343.

It is an arithmetic number, because the mean of its divisors is an integer number (2281825728).

Almost surely, 2^97598971660 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 97598971660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109527634944).

97598971660 is an abundant number, since it is smaller than the sum of its proper divisors (121456298228).

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

97598971660 is a wasteful number, since it uses less digits than its factorization.

97598971660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031 (or 6029 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 67.

The spelling of 97598971660 in words is "ninety-seven billion, five hundred ninety-eight million, nine hundred seventy-one thousand, six hundred sixty".