6564615332 has 48 divisors (see below), whose sum is σ = 12908754432. Its totient is φ = 2894791680.

The previous prime is 6564615319. The next prime is 6564615367. The reversal of 6564615332 is 2335164656.

It is a self number, because there is not a number n which added to its sum of digits gives 6564615332.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568973 + ... + 580395.

It is an arithmetic number, because the mean of its divisors is an integer number (268932384).

Almost surely, 2^6564615332 is an apocalyptic number.

It is an amenable number.

6564615332 is a deficient number, since it is larger than the sum of its proper divisors (6344139100).

6564615332 is a wasteful number, since it uses less digits than its factorization.

6564615332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828 (or 11826 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

The square root of 6564615332 is about 81022.3137907083. The cubic root of 6564615332 is about 1872.4192364823.

Adding to 6564615332 its reverse (2335164656), we get a palindrome (8899779988).

The spelling of 6564615332 in words is "six billion, five hundred sixty-four million, six hundred fifteen thousand, three hundred thirty-two".