8329403664 has 100 divisors (see below), whose sum is σ = 24939123660. Its totient is φ = 2680715520.

The previous prime is 8329403653. The next prime is 8329403737. The reversal of 8329403664 is 4663049238.

It can be written as a sum of positive squares in 2 ways, for example, as 4459568400 + 3869835264 = 66780^2 + 62208^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73227 + ... + 148394.

Almost surely, 2^8329403664 is an apocalyptic number.

It is an amenable number.

8329403664 is an abundant number, since it is smaller than the sum of its proper divisors (16609719996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8329403664 is a wasteful number, since it uses less digits than its factorization.

8329403664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221670 (or 221655 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 8329403664 is about 91265.5666941262. The cubic root of 8329403664 is about 2027.0819345168.

The spelling of 8329403664 in words is "eight billion, three hundred twenty-nine million, four hundred three thousand, six hundred sixty-four".