3505755665 has 8 divisors (see below), whose sum is σ = 4210099368. Its totient is φ = 2802476160.

The previous prime is 3505755653. The next prime is 3505755707. The reversal of 3505755665 is 5665575053.

It can be written as a sum of positive squares in 4 ways, for example, as 932019841 + 2573735824 = 30529^2 + 50732^2 .

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

It is not a de Polignac number, because 3505755665 - 2¹⁶ = 3505690129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258782 + ... + 271991.

It is an arithmetic number, because the mean of its divisors is an integer number (526262421).

Almost surely, 2^3505755665 is an apocalyptic number.

It is an amenable number.

3505755665 is a deficient number, since it is larger than the sum of its proper divisors (704343703).

3505755665 is a wasteful number, since it uses less digits than its factorization.

3505755665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532099.

The product of its (nonzero) digits is 2362500, while the sum is 47.

The square root of 3505755665 is about 59209.4220964873. The cubic root of 3505755665 is about 1519.1262962768.

The spelling of 3505755665 in words is "three billion, five hundred five million, seven hundred fifty-five thousand, six hundred sixty-five".