321664044006 has 24 divisors (see below), whose sum is σ = 697009201200. Its totient is φ = 107210511216.

The previous prime is 321664043983. The next prime is 321664044017. The reversal of 321664044006 is 600440466123.

321664044006 is a `hidden beast` number, since 3 + 2 + 1 + 6 + 640 + 4 + 4 + 0 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719010 + ... + 1077173.

It is an arithmetic number, because the mean of its divisors is an integer number (29042050050).

Almost surely, 2^321664044006 is an apocalyptic number.

321664044006 is an abundant number, since it is smaller than the sum of its proper divisors (375345157194).

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

321664044006 is a wasteful number, since it uses less digits than its factorization.

321664044006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806140 (or 1806137 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 321664044006 in words is "three hundred twenty-one billion, six hundred sixty-four million, forty-four thousand, six".