111516140145 has 16 divisors (see below), whose sum is σ = 181350839232. Its totient is φ = 58500269760.

The previous prime is 111516140129. The next prime is 111516140149. The reversal of 111516140145 is 541041615111.

It is not a de Polignac number, because 111516140145 - 2⁴ = 111516140129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111516140149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60936867 + ... + 60938696.

It is an arithmetic number, because the mean of its divisors is an integer number (11334427452).

Almost surely, 2^111516140145 is an apocalyptic number.

111516140145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111516140145 is a deficient number, since it is larger than the sum of its proper divisors (69834699087).

111516140145 is a wasteful number, since it uses less digits than its factorization.

111516140145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121875632.

The product of its (nonzero) digits is 2400, while the sum is 30.

Adding to 111516140145 its reverse (541041615111), we get a palindrome (652557755256).

The spelling of 111516140145 in words is "one hundred eleven billion, five hundred sixteen million, one hundred forty thousand, one hundred forty-five".