256222256735 has 16 divisors (see below), whose sum is σ = 333493306272. Its totient is φ = 188214912000.

The previous prime is 256222256683. The next prime is 256222256747. The reversal of 256222256735 is 537652222652.

It is not a de Polignac number, because 256222256735 - 2¹⁰ = 256222255711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256222256735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36757241 + ... + 36764210.

It is an arithmetic number, because the mean of its divisors is an integer number (20843331642).

Almost surely, 2^256222256735 is an apocalyptic number.

256222256735 is a deficient number, since it is larger than the sum of its proper divisors (77271049537).

256222256735 is a wasteful number, since it uses less digits than its factorization.

256222256735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73521514.

The product of its digits is 3024000, while the sum is 47.

The spelling of 256222256735 in words is "two hundred fifty-six billion, two hundred twenty-two million, two hundred fifty-six thousand, seven hundred thirty-five".