11000105555 has 4 divisors (see below), whose sum is σ = 13200126672. Its totient is φ = 8800084440.

The previous prime is 11000105497. The next prime is 11000105579. The reversal of 11000105555 is 55550100011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11000105555 - 2⁸ = 11000105299 is a prime.

It is a super-2 number, since 2×11000105555² (a number of 21 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 11000105555.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100010551 + ... + 1100010560.

It is an arithmetic number, because the mean of its divisors is an integer number (3300031668).

Almost surely, 2^11000105555 is an apocalyptic number.

11000105555 is a deficient number, since it is larger than the sum of its proper divisors (2200021117).

11000105555 is an equidigital number, since it uses as much as digits as its factorization.

11000105555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200021116.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 11000105555 its reverse (55550100011), we get a palindrome (66550205566).

The spelling of 11000105555 in words is "eleven billion, one hundred five thousand, five hundred fifty-five".