256352133355 has 16 divisors (see below), whose sum is σ = 324681397920. Its totient is φ = 193767026688.

The previous prime is 256352133343. The next prime is 256352133371. The reversal of 256352133355 is 553331253652.

It is a cyclic number.

It is not a de Polignac number, because 256352133355 - 2⁷ = 256352133227 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 3581782 + ... + 3652651.

It is an arithmetic number, because the mean of its divisors is an integer number (20292587370).

Almost surely, 2^256352133355 is an apocalyptic number.

256352133355 is a deficient number, since it is larger than the sum of its proper divisors (68329264565).

256352133355 is a wasteful number, since it uses less digits than its factorization.

256352133355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234830.

The product of its digits is 1215000, while the sum is 43.

The spelling of 256352133355 in words is "two hundred fifty-six billion, three hundred fifty-two million, one hundred thirty-three thousand, three hundred fifty-five".