985718591660 has 48 divisors (see below), whose sum is σ = 2261682259200. Its totient is φ = 357889064640.

The previous prime is 985718591659. The next prime is 985718591723. The reversal of 985718591660 is 66195817589.

It is a super-2 number, since 2×985718591660² (a number of 25 digits) contains 22 as substring.

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, 3320210 + ... + 3604889.

It is an arithmetic number, because the mean of its divisors is an integer number (47118380400).

Almost surely, 2^985718591660 is an apocalyptic number.

It is an amenable number.

985718591660 is an abundant number, since it is smaller than the sum of its proper divisors (1275963667540).

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

985718591660 is a wasteful number, since it uses less digits than its factorization.

985718591660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925766 (or 6925764 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 65.

The spelling of 985718591660 in words is "nine hundred eighty-five billion, seven hundred eighteen million, five hundred ninety-one thousand, six hundred sixty".