320255503633536 has 64 divisors (see below), whose sum is σ = 878119929350400. Its totient is φ = 103308226974720.

The previous prime is 320255503633459. The next prime is 320255503633577. The reversal of 320255503633536 is 635336305552023.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13451580151 + ... + 13451603958.

It is an arithmetic number, because the mean of its divisors is an integer number (13720623896100).

Almost surely, 2^{320255503633536} is an apocalyptic number.

It is an amenable number.

320255503633536 is an abundant number, since it is smaller than the sum of its proper divisors (557864425716864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320255503633536 is a wasteful number, since it uses less digits than its factorization.

320255503633536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26903184157 (or 26903184145 counting only the distinct ones).

The product of its (nonzero) digits is 21870000, while the sum is 51.

The spelling of 320255503633536 in words is "three hundred twenty trillion, two hundred fifty-five billion, five hundred three million, six hundred thirty-three thousand, five hundred thirty-six".