320025440353 has 8 divisors (see below), whose sum is σ = 321408561600. Its totient is φ = 318645051408.

The previous prime is 320025440341. The next prime is 320025440369. The reversal of 320025440353 is 353044520023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320025440353 - 2¹³ = 320025432161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320025440753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448143 + ... + 916996.

It is an arithmetic number, because the mean of its divisors is an integer number (40176070200).

Almost surely, 2^320025440353 is an apocalyptic number.

It is an amenable number.

320025440353 is a deficient number, since it is larger than the sum of its proper divisors (1383121247).

320025440353 is a wasteful number, since it uses less digits than its factorization.

320025440353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366151.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 320025440353 its reverse (353044520023), we get a palindrome (673069960376).

The spelling of 320025440353 in words is "three hundred twenty billion, twenty-five million, four hundred forty thousand, three hundred fifty-three".