6365511664 has 20 divisors (see below), whose sum is σ = 12340646656. Its totient is φ = 3180828672.

The previous prime is 6365511661. The next prime is 6365511731. The reversal of 6365511664 is 4661155636.

It is a self number, because there is not a number n which added to its sum of digits gives 6365511664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6365511661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93009 + ... + 146224.

Almost surely, 2^6365511664 is an apocalyptic number.

It is an amenable number.

6365511664 is a deficient number, since it is larger than the sum of its proper divisors (5975134992).

6365511664 is a wasteful number, since it uses less digits than its factorization.

6365511664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240904 (or 240898 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The square root of 6365511664 is about 79784.1567229986. The cubic root of 6365511664 is about 1853.2945108005.

The spelling of 6365511664 in words is "six billion, three hundred sixty-five million, five hundred eleven thousand, six hundred sixty-four".