256366424000 has 56 divisors (see below), whose sum is σ = 634891468848. Its totient is φ = 102546566400.

The previous prime is 256366423931. The next prime is 256366424047. The reversal of 256366424000 is 424663652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16014902 + ... + 16030901.

It is an arithmetic number, because the mean of its divisors is an integer number (11337347658).

Almost surely, 2^256366424000 is an apocalyptic number.

256366424000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256366424000 is an abundant number, since it is smaller than the sum of its proper divisors (378525044848).

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

256366424000 is an equidigital number, since it uses as much as digits as its factorization.

256366424000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32045830 (or 32045810 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 256366424000 in words is "two hundred fifty-six billion, three hundred sixty-six million, four hundred twenty-four thousand".