256541622533404 has 24 divisors (see below), whose sum is σ = 483539082863760. Its totient is φ = 118389916990464.

The previous prime is 256541622533393. The next prime is 256541622533447. The reversal of 256541622533404 is 404335226145652.

It is a happy number.

256541622533404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 289319614 + ... + 290204965.

It is an arithmetic number, because the mean of its divisors is an integer number (20147461785990).

Almost surely, 2^{256541622533404} is an apocalyptic number.

It is an amenable number.

256541622533404 is a deficient number, since it is larger than the sum of its proper divisors (226997460330356).

256541622533404 is a wasteful number, since it uses less digits than its factorization.

256541622533404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579533109 (or 579533107 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 52.

The spelling of 256541622533404 in words is "two hundred fifty-six trillion, five hundred forty-one billion, six hundred twenty-two million, five hundred thirty-three thousand, four hundred four".