321343062664 has 64 divisors (see below), whose sum is σ = 651928717440. Its totient is φ = 147612810240.

The previous prime is 321343062653. The next prime is 321343062673. The reversal of 321343062664 is 466260343123.

It is a happy number.

It is a super-2 number, since 2×321343062664² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74262469 + ... + 74266795.

It is an arithmetic number, because the mean of its divisors is an integer number (10186386210).

Almost surely, 2^321343062664 is an apocalyptic number.

It is an amenable number.

321343062664 is an abundant number, since it is smaller than the sum of its proper divisors (330585654776).

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

321343062664 is a wasteful number, since it uses less digits than its factorization.

321343062664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7550 (or 7546 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 40.

The spelling of 321343062664 in words is "three hundred twenty-one billion, three hundred forty-three million, sixty-two thousand, six hundred sixty-four".