256220319232 has 20 divisors (see below), whose sum is σ = 511940209176. Its totient is φ = 128110159360.

The previous prime is 256220319227. The next prime is 256220319293. The reversal of 256220319232 is 232913022652.

256220319232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256220319191 and 256220319200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250214644 + ... + 250215667.

Almost surely, 2^256220319232 is an apocalyptic number.

It is an amenable number.

256220319232 is a deficient number, since it is larger than the sum of its proper divisors (255719889944).

256220319232 is an frugal number, since it uses more digits than its factorization.

256220319232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500430329 (or 500430313 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 256220319232 in words is "two hundred fifty-six billion, two hundred twenty million, three hundred nineteen thousand, two hundred thirty-two".