111556614311161 has 8 divisors (see below), whose sum is σ = 117471394510880. Its totient is φ = 105646172056128.

The previous prime is 111556614311113. The next prime is 111556614311167. The reversal of 111556614311161 is 161113416655111.

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-111556614311161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111556614311167) 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, 1084433376 + ... + 1084536241.

It is an arithmetic number, because the mean of its divisors is an integer number (14683924313860).

Almost surely, 2^{111556614311161} is an apocalyptic number.

It is an amenable number.

111556614311161 is a deficient number, since it is larger than the sum of its proper divisors (5914780199719).

111556614311161 is a wasteful number, since it uses less digits than its factorization.

111556614311161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168972343.

The product of its digits is 64800, while the sum is 43.

The spelling of 111556614311161 in words is "one hundred eleven trillion, five hundred fifty-six billion, six hundred fourteen million, three hundred eleven thousand, one hundred sixty-one".