111151160161 has 4 divisors (see below), whose sum is σ = 111859129492. Its totient is φ = 110443190832.

The previous prime is 111151160093. The next prime is 111151160189. The reversal of 111151160161 is 161061151111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161061151111 = 7 ⋅23008735873.

It can be written as a sum of positive squares in 2 ways, for example, as 76942438225 + 34208721936 = 277385^2 + 184956^2 .

It is a cyclic number.

It is not a de Polignac number, because 111151160161 - 2⁷ = 111151160033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111151160261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353984430 + ... + 353984743.

It is an arithmetic number, because the mean of its divisors is an integer number (27964782373).

Almost surely, 2^111151160161 is an apocalyptic number.

It is an amenable number.

111151160161 is a deficient number, since it is larger than the sum of its proper divisors (707969331).

111151160161 is an equidigital number, since it uses as much as digits as its factorization.

111151160161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707969330.

The product of its (nonzero) digits is 180, while the sum is 25.

The spelling of 111151160161 in words is "one hundred eleven billion, one hundred fifty-one million, one hundred sixty thousand, one hundred sixty-one".