256115356424 has 16 divisors (see below), whose sum is σ = 482042214720. Its totient is φ = 127570765840.

The previous prime is 256115356379. The next prime is 256115356439. The reversal of 256115356424 is 424653511652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60861812 + ... + 60866019.

It is an arithmetic number, because the mean of its divisors is an integer number (30127638420).

Almost surely, 2^256115356424 is an apocalyptic number.

It is an amenable number.

256115356424 is a deficient number, since it is larger than the sum of its proper divisors (225926858296).

256115356424 is a wasteful number, since it uses less digits than its factorization.

256115356424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121728100 (or 121728096 counting only the distinct ones).

The product of its digits is 864000, while the sum is 44.

The spelling of 256115356424 in words is "two hundred fifty-six billion, one hundred fifteen million, three hundred fifty-six thousand, four hundred twenty-four".