321285446664 has 64 divisors (see below), whose sum is σ = 988570611840. Its totient is φ = 84734622720.

The previous prime is 321285446663. The next prime is 321285446681. The reversal of 321285446664 is 466644582123.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (321285446663) by changing a digit.

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, 73552177 + ... + 73556544.

It is an arithmetic number, because the mean of its divisors is an integer number (15446415810).

Almost surely, 2^321285446664 is an apocalyptic number.

It is an amenable number.

321285446664 is an abundant number, since it is smaller than the sum of its proper divisors (667285165176).

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

321285446664 is a wasteful number, since it uses less digits than its factorization.

321285446664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147108750 (or 147108746 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 51.

The spelling of 321285446664 in words is "three hundred twenty-one billion, two hundred eighty-five million, four hundred forty-six thousand, six hundred sixty-four".