2105135766 has 24 divisors (see below), whose sum is σ = 4759438320. Its totient is φ = 671202576.

The previous prime is 2105135759. The next prime is 2105135797. The reversal of 2105135766 is 6675315012.

It is a self number, because there is not a number n which added to its sum of digits gives 2105135766.

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 11 ways as a sum of consecutive naturals, for example, 2542021 + ... + 2542848.

It is an arithmetic number, because the mean of its divisors is an integer number (198309930).

Almost surely, 2^2105135766 is an apocalyptic number.

2105135766 is an abundant number, since it is smaller than the sum of its proper divisors (2654302554).

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

2105135766 is a wasteful number, since it uses less digits than its factorization.

2105135766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084900 (or 5084897 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 2105135766 is about 45881.7585321225. The cubic root of 2105135766 is about 1281.6222444845.

The spelling of 2105135766 in words is "two billion, one hundred five million, one hundred thirty-five thousand, seven hundred sixty-six".