256068807480 has 48 divisors (see below), whose sum is σ = 832223625480. Its totient is φ = 68285015232.

The previous prime is 256068807469. The next prime is 256068807523. The reversal of 256068807480 is 84708860652.

256068807480 is a `hidden beast` number, since 2 + 560 + 6 + 8 + 8 + 0 + 74 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355650762 + ... + 355651481.

Almost surely, 2^256068807480 is an apocalyptic number.

256068807480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256068807480 is an abundant number, since it is smaller than the sum of its proper divisors (576154818000).

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

256068807480 is a wasteful number, since it uses less digits than its factorization.

256068807480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711302260 (or 711302253 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 256068807480 in words is "two hundred fifty-six billion, sixty-eight million, eight hundred seven thousand, four hundred eighty".