105565033055 has 4 divisors (see below), whose sum is σ = 126678039672. Its totient is φ = 84452026440.

The previous prime is 105565033027. The next prime is 105565033069. The reversal of 105565033055 is 550330565501.

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

It is not a de Polignac number, because 105565033055 - 2¹⁸ = 105564770911 is a prime.

It is a super-2 number, since 2×105565033055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10556503301 + ... + 10556503310.

It is an arithmetic number, because the mean of its divisors is an integer number (31669509918).

Almost surely, 2^105565033055 is an apocalyptic number.

105565033055 is a deficient number, since it is larger than the sum of its proper divisors (21113006617).

105565033055 is an equidigital number, since it uses as much as digits as its factorization.

105565033055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21113006616.

The product of its (nonzero) digits is 168750, while the sum is 38.

Adding to 105565033055 its reverse (550330565501), we get a palindrome (655895598556).

The spelling of 105565033055 in words is "one hundred five billion, five hundred sixty-five million, thirty-three thousand, fifty-five".