2105775605 has 8 divisors (see below), whose sum is σ = 2659927200. Its totient is φ = 1595956176.

The previous prime is 2105775599. The next prime is 2105775641. The reversal of 2105775605 is 5065775012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105775605 - 2²² = 2101581301 is a prime.

It is a super-2 number, since 2×2105775605² = 8868581797226232050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11082935 + ... + 11083124.

It is an arithmetic number, because the mean of its divisors is an integer number (332490900).

Almost surely, 2^2105775605 is an apocalyptic number.

It is an amenable number.

2105775605 is a deficient number, since it is larger than the sum of its proper divisors (554151595).

2105775605 is a wasteful number, since it uses less digits than its factorization.

2105775605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22166083.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 2105775605 is about 45888.7306971984. The cubic root of 2105775605 is about 1281.7520775721.

The spelling of 2105775605 in words is "two billion, one hundred five million, seven hundred seventy-five thousand, six hundred five".