320949945552 has 80 divisors (see below), whose sum is σ = 834445703168. Its totient is φ = 106298075520.

The previous prime is 320949945541. The next prime is 320949945583. The reversal of 320949945552 is 255549949023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320949945492 and 320949945501.

It is a congruent number.

It is an unprimeable number.

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, 5569527 + ... + 5626857.

Almost surely, 2^320949945552 is an apocalyptic number.

It is an amenable number.

320949945552 is an abundant number, since it is smaller than the sum of its proper divisors (513495757616).

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

320949945552 is a wasteful number, since it uses less digits than its factorization.

320949945552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58088 (or 58082 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 57.

The spelling of 320949945552 in words is "three hundred twenty billion, nine hundred forty-nine million, nine hundred forty-five thousand, five hundred fifty-two".