320345020052 has 48 divisors (see below), whose sum is σ = 583870038528. Its totient is φ = 153663713280.

The previous prime is 320345020043. The next prime is 320345020067. The reversal of 320345020052 is 250020543023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6314813 + ... + 6365339.

It is an arithmetic number, because the mean of its divisors is an integer number (12163959136).

Almost surely, 2^320345020052 is an apocalyptic number.

It is an amenable number.

320345020052 is a deficient number, since it is larger than the sum of its proper divisors (263525018476).

320345020052 is a wasteful number, since it uses less digits than its factorization.

320345020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51216 (or 51214 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 320345020052 its reverse (250020543023), we get a palindrome (570365563075).

The spelling of 320345020052 in words is "three hundred twenty billion, three hundred forty-five million, twenty thousand, fifty-two".