320215040455 has 8 divisors (see below), whose sum is σ = 384261246000. Its totient is φ = 256169900736.

The previous prime is 320215040447. The next prime is 320215040491. The reversal of 320215040455 is 554040512023.

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 320215040455 - 2³ = 320215040447 is a prime.

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, 740371 + ... + 1090219.

It is an arithmetic number, because the mean of its divisors is an integer number (48032655750).

Almost surely, 2^320215040455 is an apocalyptic number.

320215040455 is a deficient number, since it is larger than the sum of its proper divisors (64046205545).

320215040455 is a wasteful number, since it uses less digits than its factorization.

320215040455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532913.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 320215040455 its reverse (554040512023), we get a palindrome (874255552478).

The spelling of 320215040455 in words is "three hundred twenty billion, two hundred fifteen million, forty thousand, four hundred fifty-five".