111216159275841 has 24 divisors (see below), whose sum is σ = 166191087329280. Its totient is φ = 71584818885216.

The previous prime is 111216159275839. The next prime is 111216159275951. The reversal of 111216159275841 is 148572951612111.

It is a happy number.

111216159275841 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 1 + 6 + 1 + 59 + 2 + 7 + 584 + 1 = 666.

It is not a de Polignac number, because 111216159275841 - 2¹ = 111216159275839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111216159075841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490495 + ... + 14922228.

It is an arithmetic number, because the mean of its divisors is an integer number (6924628638720).

Almost surely, 2^{111216159275841} is an apocalyptic number.

It is an amenable number.

111216159275841 is a deficient number, since it is larger than the sum of its proper divisors (54974928053439).

111216159275841 is a wasteful number, since it uses less digits than its factorization.

111216159275841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15440405 (or 15440402 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 54.

The spelling of 111216159275841 in words is "one hundred eleven trillion, two hundred sixteen billion, one hundred fifty-nine million, two hundred seventy-five thousand, eight hundred forty-one".