6640222065324 has 48 divisors (see below), whose sum is σ = 16327571500800. Its totient is φ = 2096210142400.

The previous prime is 6640222065317. The next prime is 6640222065353. The reversal of 6640222065324 is 4235602220466.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119074974 + ... + 119130725.

It is an arithmetic number, because the mean of its divisors is an integer number (340157739600).

Almost surely, 2^{6640222065324} is an apocalyptic number.

It is an amenable number.

6640222065324 is an abundant number, since it is smaller than the sum of its proper divisors (9687349435476).

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

6640222065324 is a wasteful number, since it uses less digits than its factorization.

6640222065324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238205830 (or 238205828 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 6640222065324 in words is "six trillion, six hundred forty billion, two hundred twenty-two million, sixty-five thousand, three hundred twenty-four".