111113345566789 has 16 divisors (see below), whose sum is σ = 119108395836288. Its totient is φ = 103383431756352.

The previous prime is 111113345566709. The next prime is 111113345566801. The reversal of 111113345566789 is 987665543311111.

It is a cyclic number.

It is not a de Polignac number, because 111113345566789 - 2²⁹ = 111112808695877 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111113345566709) 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, 13333467 + ... + 20000200.

It is an arithmetic number, because the mean of its divisors is an integer number (7444274739768).

Almost surely, 2^{111113345566789} is an apocalyptic number.

111113345566789 is the 6666734-th heptagonal number.

It is an amenable number.

111113345566789 is a deficient number, since it is larger than the sum of its proper divisors (7995050269499).

111113345566789 is a wasteful number, since it uses less digits than its factorization.

111113345566789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33337644.

The product of its digits is 16329600, while the sum is 61.

The spelling of 111113345566789 in words is "one hundred eleven trillion, one hundred thirteen billion, three hundred forty-five million, five hundred sixty-six thousand, seven hundred eighty-nine".