6516586161 has 24 divisors (see below), whose sum is σ = 10275239520. Its totient is φ = 4115735712.

The previous prime is 6516586157. The next prime is 6516586169. The reversal of 6516586161 is 1616856156.

6516586161 is a `hidden beast` number, since 6 + 5 + 1 + 6 + 586 + 1 + 61 = 666.

It is not a de Polignac number, because 6516586161 - 2² = 6516586157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6516586169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 701100 + ... + 710333.

It is an arithmetic number, because the mean of its divisors is an integer number (428134980).

Almost surely, 2^6516586161 is an apocalyptic number.

It is an amenable number.

6516586161 is a deficient number, since it is larger than the sum of its proper divisors (3758653359).

6516586161 is a wasteful number, since it uses less digits than its factorization.

6516586161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411467 (or 1411455 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 6516586161 is about 80725.3749511267. The cubic root of 6516586161 is about 1867.8416155430.

The spelling of 6516586161 in words is "six billion, five hundred sixteen million, five hundred eighty-six thousand, one hundred sixty-one".