6464803216 has 15 divisors (see below), whose sum is σ = 12526179393. Its totient is φ = 3232240800.

The previous prime is 6464803171. The next prime is 6464803229. The reversal of 6464803216 is 6123084646.

The square root of 6464803216 is 80404.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2171932816 + 4292870400 = 46604^2 + 65520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 311566 + ... + 331666.

Almost surely, 2^6464803216 is an apocalyptic number.

6464803216 is the 80404-th square number.

It is an amenable number.

6464803216 is a deficient number, since it is larger than the sum of its proper divisors (6061376177).

6464803216 is an frugal number, since it uses more digits than its factorization.

6464803216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40210 (or 20103 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The cubic root of 6464803216 is about 1862.8809571979.

The spelling of 6464803216 in words is "six billion, four hundred sixty-four million, eight hundred three thousand, two hundred sixteen".