320551840345 has 8 divisors (see below), whose sum is σ = 419631500160. Its totient is φ = 233128611120.

The previous prime is 320551840337. The next prime is 320551840391. The reversal of 320551840345 is 543048155023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320551840345 - 2³ = 320551840337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320551840298 and 320551840307.

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 7 ways as a sum of consecutive naturals, for example, 2914107585 + ... + 2914107694.

It is an arithmetic number, because the mean of its divisors is an integer number (52453937520).

Almost surely, 2^320551840345 is an apocalyptic number.

It is an amenable number.

320551840345 is a deficient number, since it is larger than the sum of its proper divisors (99079659815).

320551840345 is a wasteful number, since it uses less digits than its factorization.

320551840345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5828215295.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 320551840345 its reverse (543048155023), we get a palindrome (863599995368).

The spelling of 320551840345 in words is "three hundred twenty billion, five hundred fifty-one million, eight hundred forty thousand, three hundred forty-five".