320055002345 has 32 divisors (see below), whose sum is σ = 415348336032. Its totient is φ = 235356751872.

The previous prime is 320055002341. The next prime is 320055002357. The reversal of 320055002345 is 543200550023.

It can be written as a sum of positive squares in 16 ways, for example, as 204246148096 + 115808854249 = 451936^2 + 340307^2 .

It is a cyclic number.

It is not a de Polignac number, because 320055002345 - 2² = 320055002341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320055002341) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 15808349 + ... + 15828581.

It is an arithmetic number, because the mean of its divisors is an integer number (12979635501).

Almost surely, 2^320055002345 is an apocalyptic number.

It is an amenable number.

320055002345 is a deficient number, since it is larger than the sum of its proper divisors (95293333687).

320055002345 is a wasteful number, since it uses less digits than its factorization.

320055002345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21261.

The product of its (nonzero) digits is 18000, while the sum is 29.

Adding to 320055002345 its reverse (543200550023), we get a palindrome (863255552368).

The spelling of 320055002345 in words is "three hundred twenty billion, fifty-five million, two thousand, three hundred forty-five".