9038665585 has 16 divisors (see below), whose sum is σ = 10904409216. Its totient is φ = 7192342528.

The previous prime is 9038665561. The next prime is 9038665651. The reversal of 9038665585 is 5855668309.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9038665585 - 2³³ = 448730993 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 950022 + ... + 959488.

It is an arithmetic number, because the mean of its divisors is an integer number (681525576).

Almost surely, 2^9038665585 is an apocalyptic number.

It is an amenable number.

9038665585 is a deficient number, since it is larger than the sum of its proper divisors (1865743631).

9038665585 is a wasteful number, since it uses less digits than its factorization.

9038665585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10472.

The product of its (nonzero) digits is 7776000, while the sum is 55.

The square root of 9038665585 is about 95071.8969254322. The cubic root of 9038665585 is about 2083.0583695280.

The spelling of 9038665585 in words is "nine billion, thirty-eight million, six hundred sixty-five thousand, five hundred eighty-five".