320545563564330 has 128 divisors (see below), whose sum is σ = 920638131033600. Its totient is φ = 78895206876672.

The previous prime is 320545563564283. The next prime is 320545563564383. The reversal of 320545563564330 is 33465365545023.

320545563564330 is a `hidden beast` number, since 3 + 2 + 0 + 5 + 4 + 5 + 563 + 5 + 6 + 43 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28526451 + ... + 38142489.

It is an arithmetic number, because the mean of its divisors is an integer number (7192485398700).

Almost surely, 2^{320545563564330} is an apocalyptic number.

320545563564330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320545563564330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460319065516800).

320545563564330 is an abundant number, since it is smaller than the sum of its proper divisors (600092567469270).

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

320545563564330 is a wasteful number, since it uses less digits than its factorization.

320545563564330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625565 (or 9625559 counting only the distinct ones).

The product of its (nonzero) digits is 58320000, while the sum is 54.

The spelling of 320545563564330 in words is "three hundred twenty trillion, five hundred forty-five billion, five hundred sixty-three million, five hundred sixty-four thousand, three hundred thirty".