3234561665 has 8 divisors (see below), whose sum is σ = 3892597800. Its totient is φ = 2580233472.

The previous prime is 3234561647. The next prime is 3234561677. The reversal of 3234561665 is 5661654323.

It can be written as a sum of positive squares in 4 ways, for example, as 1696039489 + 1538522176 = 41183^2 + 39224^2 .

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 3234561665 - 2⁶ = 3234561601 is a prime.

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, 925064 + ... + 928553.

It is an arithmetic number, because the mean of its divisors is an integer number (486574725).

Almost surely, 2^3234561665 is an apocalyptic number.

It is an amenable number.

3234561665 is a deficient number, since it is larger than the sum of its proper divisors (658036135).

3234561665 is a wasteful number, since it uses less digits than its factorization.

3234561665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853971.

The product of its digits is 388800, while the sum is 41.

The square root of 3234561665 is about 56873.2069167899. The cubic root of 3234561665 is about 1478.8988743203.

The spelling of 3234561665 in words is "three billion, two hundred thirty-four million, five hundred sixty-one thousand, six hundred sixty-five".