111105550105 has 16 divisors (see below), whose sum is σ = 145531318464. Its totient is φ = 80757340480.

The previous prime is 111105550067. The next prime is 111105550109. The reversal of 111105550105 is 501055501111.

It is not a de Polignac number, because 111105550105 - 2⁹ = 111105549593 is a prime.

It is a super-2 number, since 2×111105550105² (a number of 23 digits) contains 22 as substring.

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 111105550105.

It is not an unprimeable number, because it can be changed into a prime (111105550109) 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, 487519 + ... + 678148.

It is an arithmetic number, because the mean of its divisors is an integer number (9095707404).

Almost surely, 2^111105550105 is an apocalyptic number.

It is an amenable number.

111105550105 is a deficient number, since it is larger than the sum of its proper divisors (34425768359).

111105550105 is a wasteful number, since it uses less digits than its factorization.

111105550105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167416.

The product of its (nonzero) digits is 625, while the sum is 25.

The spelling of 111105550105 in words is "one hundred eleven billion, one hundred five million, five hundred fifty thousand, one hundred five".