320580566025 has 48 divisors (see below), whose sum is σ = 540238101120. Its totient is φ = 167744491200.

The previous prime is 320580566023. The next prime is 320580566039. The reversal of 320580566025 is 520665085023.

It is not a de Polignac number, because 320580566025 - 2¹ = 320580566023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320580566021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11151420 + ... + 11180130.

It is an arithmetic number, because the mean of its divisors is an integer number (11254960440).

Almost surely, 2^320580566025 is an apocalyptic number.

It is an amenable number.

320580566025 is a deficient number, since it is larger than the sum of its proper divisors (219657535095).

320580566025 is an frugal number, since it uses more digits than its factorization.

320580566025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28883 (or 28772 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 320580566025 in words is "three hundred twenty billion, five hundred eighty million, five hundred sixty-six thousand, twenty-five".