111110981667679 has 32 divisors (see below), whose sum is σ = 131800303540224. Its totient is φ = 91690870199040.

The previous prime is 111110981667641. The next prime is 111110981667691. The reversal of 111110981667679 is 976766189011111.

It is not a de Polignac number, because 111110981667679 - 2⁹ = 111110981667167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111110981667679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110981667629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33186069 + ... + 36380449.

It is an arithmetic number, because the mean of its divisors is an integer number (4118759485632).

Almost surely, 2^{111110981667679} is an apocalyptic number.

111110981667679 is a deficient number, since it is larger than the sum of its proper divisors (20689321872545).

111110981667679 is a wasteful number, since it uses less digits than its factorization.

111110981667679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196087.

The product of its (nonzero) digits is 6858432, while the sum is 64.

The spelling of 111110981667679 in words is "one hundred eleven trillion, one hundred ten billion, nine hundred eighty-one million, six hundred sixty-seven thousand, six hundred seventy-nine".