2101665336 has 32 divisors (see below), whose sum is σ = 5423654400. Its totient is φ = 677956320.

The previous prime is 2101665331. The next prime is 2101665337. The reversal of 2101665336 is 6335661012.

It is a junction number, because it is equal to n+sod(n) for n = 2101665297 and 2101665306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101665331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1411666 + ... + 1413153.

It is an arithmetic number, because the mean of its divisors is an integer number (169489200).

Almost surely, 2^2101665336 is an apocalyptic number.

It is an amenable number.

2101665336 is an abundant number, since it is smaller than the sum of its proper divisors (3321989064).

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

2101665336 is a wasteful number, since it uses less digits than its factorization.

2101665336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824859 (or 2824855 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 2101665336 is about 45843.9236540678. The cubic root of 2101665336 is about 1280.9175826231.

The spelling of 2101665336 in words is "two billion, one hundred one million, six hundred sixty-five thousand, three hundred thirty-six".