111116161115 has 8 divisors (see below), whose sum is σ = 135027234240. Its totient is φ = 87767701632.

The previous prime is 111116161109. The next prime is 111116161249. The reversal of 111116161115 is 511161611111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111116161115 - 2¹⁶ = 111116095579 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140652974 + ... + 140653763.

It is an arithmetic number, because the mean of its divisors is an integer number (16878404280).

Almost surely, 2^111116161115 is an apocalyptic number.

111116161115 is a deficient number, since it is larger than the sum of its proper divisors (23911073125).

111116161115 is an equidigital number, since it uses as much as digits as its factorization.

111116161115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281306821.

The product of its digits is 180, while the sum is 26.

Adding to 111116161115 its reverse (511161611111), we get a palindrome (622277772226).

The spelling of 111116161115 in words is "one hundred eleven billion, one hundred sixteen million, one hundred sixty-one thousand, one hundred fifteen".