6585115855 has 16 divisors (see below), whose sum is σ = 8679697920. Its totient is φ = 4773830688.

The previous prime is 6585115853. The next prime is 6585115861. The reversal of 6585115855 is 5585115856.

It is a happy number.

It is not a de Polignac number, because 6585115855 - 2¹ = 6585115853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6585115799 and 6585115808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6585115853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504707 + ... + 1509076.

It is an arithmetic number, because the mean of its divisors is an integer number (542481120).

Almost surely, 2^6585115855 is an apocalyptic number.

6585115855 is a deficient number, since it is larger than the sum of its proper divisors (2094582065).

6585115855 is a wasteful number, since it uses less digits than its factorization.

6585115855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013830.

The product of its digits is 1200000, while the sum is 49.

The square root of 6585115855 is about 81148.7267614224. The cubic root of 6585115855 is about 1874.3663261941.

Subtracting from 6585115855 its reverse (5585115856), we obtain a palindrome (999999999).

The spelling of 6585115855 in words is "six billion, five hundred eighty-five million, one hundred fifteen thousand, eight hundred fifty-five".