111600520051161 has 16 divisors (see below), whose sum is σ = 152824883131008. Its totient is φ = 72388318924800.

The previous prime is 111600520051157. The next prime is 111600520051219. The reversal of 111600520051161 is 161150025006111.

It is not a de Polignac number, because 111600520051161 - 2² = 111600520051157 is a prime.

It is a super-3 number, since 3×111600520051161³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111600520051121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678125 + ... + 15033866.

It is an arithmetic number, because the mean of its divisors is an integer number (9551555195688).

Almost surely, 2^{111600520051161} is an apocalyptic number.

It is an amenable number.

111600520051161 is a deficient number, since it is larger than the sum of its proper divisors (41224363079847).

111600520051161 is a wasteful number, since it uses less digits than its factorization.

111600520051161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16772192.

The product of its (nonzero) digits is 1800, while the sum is 30.

Adding to 111600520051161 its reverse (161150025006111), we get a palindrome (272750545057272).

The spelling of 111600520051161 in words is "one hundred eleven trillion, six hundred billion, five hundred twenty million, fifty-one thousand, one hundred sixty-one".