256586833222 has 4 divisors (see below), whose sum is σ = 384880249836. Its totient is φ = 128293416610.

The previous prime is 256586833219. The next prime is 256586833229. The reversal of 256586833222 is 222338685652.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 256586833222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256586833229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64146708304 + ... + 64146708307.

It is an arithmetic number, because the mean of its divisors is an integer number (96220062459).

Almost surely, 2^256586833222 is an apocalyptic number.

256586833222 is a deficient number, since it is larger than the sum of its proper divisors (128293416614).

256586833222 is a wasteful number, since it uses less digits than its factorization.

256586833222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128293416613.

The product of its digits is 8294400, while the sum is 52.

The spelling of 256586833222 in words is "two hundred fifty-six billion, five hundred eighty-six million, eight hundred thirty-three thousand, two hundred twenty-two".