320556241000 has 32 divisors (see below), whose sum is σ = 750101606280. Its totient is φ = 128222496000.

The previous prime is 320556240989. The next prime is 320556241009. The reversal of 320556241000 is 142655023.

It can be written as a sum of positive squares in 4 ways, for example, as 215773256196 + 104782984804 = 464514^2 + 323702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320556241000.

It is not an unprimeable number, because it can be changed into a prime (320556241009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 160277121 + ... + 160279120.

Almost surely, 2^320556241000 is an apocalyptic number.

It is an amenable number.

320556241000 is an abundant number, since it is smaller than the sum of its proper divisors (429545365280).

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

320556241000 is a wasteful number, since it uses less digits than its factorization.

320556241000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320556262 (or 320556248 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 320556241000 its reverse (142655023), we get a palindrome (320698896023).

The spelling of 320556241000 in words is "three hundred twenty billion, five hundred fifty-six million, two hundred forty-one thousand".