985666809163 has 8 divisors (see below), whose sum is σ = 1043832914208. Its totient is φ = 927521337984.

The previous prime is 985666809133. The next prime is 985666809217. The reversal of 985666809163 is 361908666589.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985666809163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985666809133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5060056 + ... + 5251237.

It is an arithmetic number, because the mean of its divisors is an integer number (130479114276).

Almost surely, 2^985666809163 is an apocalyptic number.

985666809163 is a deficient number, since it is larger than the sum of its proper divisors (58166105045).

985666809163 is a wasteful number, since it uses less digits than its factorization.

985666809163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316933.

The product of its (nonzero) digits is 100776960, while the sum is 67.

The spelling of 985666809163 in words is "nine hundred eighty-five billion, six hundred sixty-six million, eight hundred nine thousand, one hundred sixty-three".