9971012287560 has 64 divisors (see below), whose sum is σ = 29974460112000. Its totient is φ = 2653476765696.

The previous prime is 9971012287513. The next prime is 9971012287583. The reversal of 9971012287560 is 657822101799.

It is a self number, because there is not a number n which added to its sum of digits gives 9971012287560.

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, 85251385 + ... + 85368264.

It is an arithmetic number, because the mean of its divisors is an integer number (468350939250).

Almost surely, 2^{9971012287560} is an apocalyptic number.

It is an amenable number.

9971012287560 is an abundant number, since it is smaller than the sum of its proper divisors (20003447824440).

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

9971012287560 is a wasteful number, since it uses less digits than its factorization.

9971012287560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170620150 (or 170620146 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 9971012287560 in words is "nine trillion, nine hundred seventy-one billion, twelve million, two hundred eighty-seven thousand, five hundred sixty".