256524462220556 has 384 divisors, whose sum is σ = 513643924684800. Its totient is φ = 111532208947200.

The previous prime is 256524462220513. The next prime is 256524462220571. The reversal of 256524462220556 is 655022264425652.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 154254035381 + ... + 154254037043.

It is an arithmetic number, because the mean of its divisors is an integer number (1337614387200).

Almost surely, 2^{256524462220556} is an apocalyptic number.

It is an amenable number.

256524462220556 is an abundant number, since it is smaller than the sum of its proper divisors (257119462464244).

256524462220556 is a wasteful number, since it uses less digits than its factorization.

256524462220556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 69120000, while the sum is 56.

The spelling of 256524462220556 in words is "two hundred fifty-six trillion, five hundred twenty-four billion, four hundred sixty-two million, two hundred twenty thousand, five hundred fifty-six".