256245368306 has 8 divisors (see below), whose sum is σ = 384373455024. Its totient is φ = 128120883300.

The previous prime is 256245368263. The next prime is 256245368321. The reversal of 256245368306 is 603863542652.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 714920 + ... + 1011731.

It is an arithmetic number, because the mean of its divisors is an integer number (48046681878).

Almost surely, 2^256245368306 is an apocalyptic number.

256245368306 is a deficient number, since it is larger than the sum of its proper divisors (128128086718).

256245368306 is a wasteful number, since it uses less digits than its factorization.

256245368306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800856.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 256245368306 in words is "two hundred fifty-six billion, two hundred forty-five million, three hundred sixty-eight thousand, three hundred six".