985666809162 has 64 divisors (see below), whose sum is σ = 2361575107584. Its totient is φ = 268360767360.

The previous prime is 985666809133. The next prime is 985666809217. The reversal of 985666809162 is 261908666589.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 985666809093 and 985666809102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6581728 + ... + 6729819.

It is an arithmetic number, because the mean of its divisors is an integer number (36899611056).

Almost surely, 2^985666809162 is an apocalyptic number.

985666809162 is an abundant number, since it is smaller than the sum of its proper divisors (1375908298422).

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

985666809162 is a wasteful number, since it uses less digits than its factorization.

985666809162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13311643.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 985666809162 in words is "nine hundred eighty-five billion, six hundred sixty-six million, eight hundred nine thousand, one hundred sixty-two".