111000055506 has 16 divisors (see below), whose sum is σ = 222008326848. Its totient is φ = 36998649200.

The previous prime is 111000055489. The next prime is 111000055513. The reversal of 111000055506 is 605550000111.

It is a Curzon number.

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, 159150 + ... + 497321.

It is an arithmetic number, because the mean of its divisors is an integer number (13875520428).

Almost surely, 2^111000055506 is an apocalyptic number.

111000055506 is an abundant number, since it is smaller than the sum of its proper divisors (111008271342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111000055506 is a wasteful number, since it uses less digits than its factorization.

111000055506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684657.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 111000055506 its reverse (605550000111), we get a palindrome (716550055617).

The spelling of 111000055506 in words is "one hundred eleven billion, fifty-five thousand, five hundred six".