320225420455 has 8 divisors (see below), whose sum is σ = 385258348800. Its totient is φ = 255521773536.

The previous prime is 320225420447. The next prime is 320225420467. The reversal of 320225420455 is 554024522023.

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 320225420455 - 2³ = 320225420447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320225420455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82318215 + ... + 82322104.

It is an arithmetic number, because the mean of its divisors is an integer number (48157293600).

Almost surely, 2^320225420455 is an apocalyptic number.

320225420455 is a deficient number, since it is larger than the sum of its proper divisors (65032928345).

320225420455 is a wasteful number, since it uses less digits than its factorization.

320225420455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164640713.

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 320225420455 its reverse (554024522023), we get a palindrome (874249942478).

The spelling of 320225420455 in words is "three hundred twenty billion, two hundred twenty-five million, four hundred twenty thousand, four hundred fifty-five".