111161176061 has 4 divisors (see below), whose sum is σ = 119712035772. Its totient is φ = 102610316352.

The previous prime is 111161176039. The next prime is 111161176127. The reversal of 111161176061 is 160671161111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69369551161 + 41791624900 = 263381^2 + 204430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111161176061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111161176361) 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, 4275429836 + ... + 4275429861.

It is an arithmetic number, because the mean of its divisors is an integer number (29928008943).

Almost surely, 2^111161176061 is an apocalyptic number.

It is an amenable number.

111161176061 is a deficient number, since it is larger than the sum of its proper divisors (8550859711).

111161176061 is an equidigital number, since it uses as much as digits as its factorization.

111161176061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550859710.

The product of its (nonzero) digits is 1512, while the sum is 32.

The spelling of 111161176061 in words is "one hundred eleven billion, one hundred sixty-one million, one hundred seventy-six thousand, sixty-one".