321345555464 has 16 divisors (see below), whose sum is σ = 613891274220. Its totient is φ = 157641215680.

The previous prime is 321345555451. The next prime is 321345555473. The reversal of 321345555464 is 464555543123.

It can be written as a sum of positive squares in 2 ways, for example, as 320987967364 + 357588100 = 566558^2 + 18910^2 .

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 3 ways as a sum of consecutive naturals, for example, 378944807 + ... + 378945654.

Almost surely, 2^321345555464 is an apocalyptic number.

It is an amenable number.

321345555464 is a deficient number, since it is larger than the sum of its proper divisors (292545718756).

321345555464 is a wasteful number, since it uses less digits than its factorization.

321345555464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757890520 (or 757890516 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 47.

The spelling of 321345555464 in words is "three hundred twenty-one billion, three hundred forty-five million, five hundred fifty-five thousand, four hundred sixty-four".