256605467303 has 2 divisors, whose sum is σ = 256605467304. Its totient is φ = 256605467302.

The previous prime is 256605467299. The next prime is 256605467359. The reversal of 256605467303 is 303764506652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256605467303 - 2² = 256605467299 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256605467203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128302733651 + 128302733652.

It is an arithmetic number, because the mean of its divisors is an integer number (128302733652).

Almost surely, 2^256605467303 is an apocalyptic number.

256605467303 is a deficient number, since it is larger than the sum of its proper divisors (1).

256605467303 is an equidigital number, since it uses as much as digits as its factorization.

256605467303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 256605467303 in words is "two hundred fifty-six billion, six hundred five million, four hundred sixty-seven thousand, three hundred three".