321550368680 has 32 divisors (see below), whose sum is σ = 725537903400. Its totient is φ = 128255778816.

The previous prime is 321550368661. The next prime is 321550368697. The reversal of 321550368680 is 86863055123.

It can be written as a sum of positive squares in 4 ways, for example, as 312957449476 + 8592919204 = 559426^2 + 92698^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11372225 + ... + 11400464.

Almost surely, 2^321550368680 is an apocalyptic number.

It is an amenable number.

321550368680 is an abundant number, since it is smaller than the sum of its proper divisors (403987534720).

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

321550368680 is a wasteful number, since it uses less digits than its factorization.

321550368680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22773053 (or 22773049 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 321550368680 in words is "three hundred twenty-one billion, five hundred fifty million, three hundred sixty-eight thousand, six hundred eighty".