256332642454616 has 32 divisors (see below), whose sum is σ = 591536867204640. Its totient is φ = 101406320091648.

The previous prime is 256332642454531. The next prime is 256332642454709. The reversal of 256332642454616 is 616454246233652.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 176052638321 + ... + 176052639776.

It is an arithmetic number, because the mean of its divisors is an integer number (18485527100145).

Almost surely, 2^{256332642454616} is an apocalyptic number.

256332642454616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

256332642454616 is an abundant number, since it is smaller than the sum of its proper divisors (335204224750024).

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

256332642454616 is a wasteful number, since it uses less digits than its factorization.

256332642454616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352105278123 (or 352105278119 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 59.

The spelling of 256332642454616 in words is "two hundred fifty-six trillion, three hundred thirty-two billion, six hundred forty-two million, four hundred fifty-four thousand, six hundred sixteen".