256221842770232 has 16 divisors (see below), whose sum is σ = 480417516477000. Its totient is φ = 128110505043040.

The previous prime is 256221842770217. The next prime is 256221842770241. The reversal of 256221842770232 is 232077248122652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49419482 + ... + 54357417.

Almost surely, 2^{256221842770232} is an apocalyptic number.

It is an amenable number.

256221842770232 is a deficient number, since it is larger than the sum of its proper divisors (224195673706768).

256221842770232 is a wasteful number, since it uses less digits than its factorization.

256221842770232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104085526 (or 104085522 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 53.

The spelling of 256221842770232 in words is "two hundred fifty-six trillion, two hundred twenty-one billion, eight hundred forty-two million, seven hundred seventy thousand, two hundred thirty-two".