256621051644414 has 32 divisors (see below), whose sum is σ = 544336599942144. Its totient is φ = 80479873642080.

The previous prime is 256621051644323. The next prime is 256621051644457. The reversal of 256621051644414 is 414446150126652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15242391894 + ... + 15242408729.

It is an arithmetic number, because the mean of its divisors is an integer number (17010518748192).

Almost surely, 2^{256621051644414} is an apocalyptic number.

256621051644414 is an abundant number, since it is smaller than the sum of its proper divisors (287715548297730).

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

256621051644414 is a wasteful number, since it uses less digits than its factorization.

256621051644414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30484800712.

The product of its (nonzero) digits is 5529600, while the sum is 51.

The spelling of 256621051644414 in words is "two hundred fifty-six trillion, six hundred twenty-one billion, fifty-one million, six hundred forty-four thousand, four hundred fourteen".