256354041356 has 24 divisors (see below), whose sum is σ = 524631528960. Its totient is φ = 107310993552.

The previous prime is 256354041331. The next prime is 256354041367. The reversal of 256354041356 is 653140453652.

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, 106458116 + ... + 106460523.

It is an arithmetic number, because the mean of its divisors is an integer number (21859647040).

Almost surely, 2^256354041356 is an apocalyptic number.

It is an amenable number.

256354041356 is an abundant number, since it is smaller than the sum of its proper divisors (268277487604).

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

256354041356 is a wasteful number, since it uses less digits than its factorization.

256354041356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212918693 (or 212918691 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 256354041356 in words is "two hundred fifty-six billion, three hundred fifty-four million, forty-one thousand, three hundred fifty-six".