256204258195 has 16 divisors (see below), whose sum is σ = 311059560960. Its totient is φ = 202567824864.

The previous prime is 256204258183. The next prime is 256204258201. The reversal of 256204258195 is 591852402652.

It is a cyclic number.

It is not a de Polignac number, because 256204258195 - 2²⁷ = 256070040467 is a prime.

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, 732219 + ... + 1023988.

It is an arithmetic number, because the mean of its divisors is an integer number (19441222560).

Almost surely, 2^256204258195 is an apocalyptic number.

256204258195 is a deficient number, since it is larger than the sum of its proper divisors (54855302765).

256204258195 is a wasteful number, since it uses less digits than its factorization.

256204258195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756554.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 256204258195 in words is "two hundred fifty-six billion, two hundred four million, two hundred fifty-eight thousand, one hundred ninety-five".