256106444206 has 4 divisors (see below), whose sum is σ = 384159666312. Its totient is φ = 128053222102.

The previous prime is 256106444161. The next prime is 256106444219. The reversal of 256106444206 is 602444601652.

It is a happy number.

256106444206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64026611050 + ... + 64026611053.

It is an arithmetic number, because the mean of its divisors is an integer number (96039916578).

Almost surely, 2^256106444206 is an apocalyptic number.

256106444206 is a deficient number, since it is larger than the sum of its proper divisors (128053222106).

256106444206 is a wasteful number, since it uses less digits than its factorization.

256106444206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128053222105.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 256106444206 in words is "two hundred fifty-six billion, one hundred six million, four hundred forty-four thousand, two hundred six".