320563356352 has 112 divisors (see below), whose sum is σ = 660302431488. Its totient is φ = 154289802240.

The previous prime is 320563356349. The next prime is 320563356367. The reversal of 320563356352 is 253653365023.

It is a junction number, because it is equal to n+sod(n) for n = 320563356299 and 320563356308.

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 15 ways as a sum of consecutive naturals, for example, 89766727 + ... + 89770297.

It is an arithmetic number, because the mean of its divisors is an integer number (5895557424).

Almost surely, 2^320563356352 is an apocalyptic number.

320563356352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320563356352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330151215744).

320563356352 is an abundant number, since it is smaller than the sum of its proper divisors (339739075136).

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

320563356352 is a wasteful number, since it uses less digits than its factorization.

320563356352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014 (or 4004 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 43.

The spelling of 320563356352 in words is "three hundred twenty billion, five hundred sixty-three million, three hundred fifty-six thousand, three hundred fifty-two".