111716117161 has 8 divisors (see below), whose sum is σ = 124465152384. Its totient is φ = 99399252720.

The previous prime is 111716117159. The next prime is 111716117209. The reversal of 111716117161 is 161711617111.

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 111716117161 - 2¹ = 111716117159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111716117101) 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, 108042150 + ... + 108043183.

It is an arithmetic number, because the mean of its divisors is an integer number (15558144048).

Almost surely, 2^111716117161 is an apocalyptic number.

111716117161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111716117161 is a deficient number, since it is larger than the sum of its proper divisors (12749035223).

111716117161 is a wasteful number, since it uses less digits than its factorization.

111716117161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216085391.

The product of its digits is 1764, while the sum is 34.

The spelling of 111716117161 in words is "one hundred eleven billion, seven hundred sixteen million, one hundred seventeen thousand, one hundred sixty-one".