8590065665 has 8 divisors (see below), whose sum is σ = 10334046120. Its totient is φ = 6854740992.

The previous prime is 8590065629. The next prime is 8590065703. The reversal of 8590065665 is 5665600958.

8590065665 = 65536² + 65537².

It can be written as a sum of positive squares in 4 ways, for example, as 4295098369 + 4294967296 = 65537^2 + 65536^2 .

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 8590065665 - 2²⁸ = 8321630209 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2161760 + ... + 2165729.

It is an arithmetic number, because the mean of its divisors is an integer number (1291755765).

It is a Proth number, since it is equal to 65537 ⋅ 2¹⁷ + 1 and 65537 < 2¹⁷.

Almost surely, 2^8590065665 is an apocalyptic number.

8590065665 is the 65537-th centered square number.

It is an amenable number.

8590065665 is a deficient number, since it is larger than the sum of its proper divisors (1743980455).

8590065665 is a wasteful number, since it uses less digits than its factorization.

8590065665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327891.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The square root of 8590065665 is about 92682.6071331617. The cubic root of 8590065665 is about 2048.0104166932.

The spelling of 8590065665 in words is "eight billion, five hundred ninety million, sixty-five thousand, six hundred sixty-five".