111190016861 has 16 divisors (see below), whose sum is σ = 139344805248. Its totient is φ = 86192640000.

The previous prime is 111190016849. The next prime is 111190016887. The reversal of 111190016861 is 168610091111.

It is a cyclic number.

It is not a de Polignac number, because 111190016861 - 2²² = 111185822557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111190066861) 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, 3726140 + ... + 3755861.

It is an arithmetic number, because the mean of its divisors is an integer number (8709050328).

Almost surely, 2^111190016861 is an apocalyptic number.

111190016861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111190016861 is a deficient number, since it is larger than the sum of its proper divisors (28154788387).

111190016861 is a wasteful number, since it uses less digits than its factorization.

111190016861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482212.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 111190016861 in words is "one hundred eleven billion, one hundred ninety million, sixteen thousand, eight hundred sixty-one".