6321640615324 has 12 divisors (see below), whose sum is σ = 11062958170264. Its totient is φ = 3160795423824.

The previous prime is 6321640615321. The next prime is 6321640615349. The reversal of 6321640615324 is 4235160461236.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6321640615321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5643399 + ... + 6670174.

Almost surely, 2^{6321640615324} is an apocalyptic number.

It is an amenable number.

6321640615324 is a deficient number, since it is larger than the sum of its proper divisors (4741317554940).

6321640615324 is a wasteful number, since it uses less digits than its factorization.

6321640615324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12441924 (or 12441922 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 6321640615324 in words is "six trillion, three hundred twenty-one billion, six hundred forty million, six hundred fifteen thousand, three hundred twenty-four".