105160521565105 has 4 divisors (see below), whose sum is σ = 126192625878132. Its totient is φ = 84128417252080.

The previous prime is 105160521565069. The next prime is 105160521565133. The reversal of 105160521565105 is 501565125061501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59722231296256 + 45438290268849 = 7728016^2 + 6740793^2 .

It is a de Polignac number, because none of the positive numbers 2^k-105160521565105 is a prime.

It is a super-2 number, since 2×105160521565105² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10516052156506 + ... + 10516052156515.

It is an arithmetic number, because the mean of its divisors is an integer number (31548156469533).

Almost surely, 2^{105160521565105} is an apocalyptic number.

It is an amenable number.

105160521565105 is a deficient number, since it is larger than the sum of its proper divisors (21032104313027).

105160521565105 is an equidigital number, since it uses as much as digits as its factorization.

105160521565105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21032104313026.

The product of its (nonzero) digits is 225000, while the sum is 43.

The spelling of 105160521565105 in words is "one hundred five trillion, one hundred sixty billion, five hundred twenty-one million, five hundred sixty-five thousand, one hundred five".