4231667665 has 8 divisors (see below), whose sum is σ = 5094226728. Its totient is φ = 3374517120.

The previous prime is 4231667653. The next prime is 4231667743. The reversal of 4231667665 is 5667661324.

It can be written as a sum of positive squares in 4 ways, for example, as 261533584 + 3970134081 = 16172^2 + 63009^2 .

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

It is not a de Polignac number, because 4231667665 - 2¹⁷ = 4231536593 is a prime.

It is a super-2 number, since 2×4231667665² = 35814022454013104450, which contains 22 as substring.

It is a Duffinian 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, 1350406 + ... + 1353535.

It is an arithmetic number, because the mean of its divisors is an integer number (636778341).

Almost surely, 2^4231667665 is an apocalyptic number.

It is an amenable number.

4231667665 is a deficient number, since it is larger than the sum of its proper divisors (862559063).

4231667665 is a wasteful number, since it uses less digits than its factorization.

4231667665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704259.

The product of its digits is 1088640, while the sum is 46.

The square root of 4231667665 is about 65051.2695110557. The cubic root of 4231667665 is about 1617.4735380401.

The spelling of 4231667665 in words is "four billion, two hundred thirty-one million, six hundred sixty-seven thousand, six hundred sixty-five".