831113556161 has 8 divisors (see below), whose sum is σ = 991141632384. Its totient is φ = 681409872000.

The previous prime is 831113556151. The next prime is 831113556167. The reversal of 831113556161 is 161655311138.

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

It is a cyclic number.

It is not a de Polignac number, because 831113556161 - 2¹⁸ = 831113294017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (831113556167) 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, 2581097840 + ... + 2581098161.

It is an arithmetic number, because the mean of its divisors is an integer number (123892704048).

Almost surely, 2^831113556161 is an apocalyptic number.

It is an amenable number.

831113556161 is a deficient number, since it is larger than the sum of its proper divisors (160028076223).

831113556161 is a wasteful number, since it uses less digits than its factorization.

831113556161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162196031.

The product of its digits is 64800, while the sum is 41.

Adding to 831113556161 its reverse (161655311138), we get a palindrome (992768867299).

The spelling of 831113556161 in words is "eight hundred thirty-one billion, one hundred thirteen million, five hundred fifty-six thousand, one hundred sixty-one".