256316170 has 16 divisors (see below), whose sum is σ = 503311968. Its totient is φ = 93205840.

The previous prime is 256316161. The next prime is 256316231. The reversal of 256316170 is 71613652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164964 + ... + 1165183.

It is an arithmetic number, because the mean of its divisors is an integer number (31456998).

Almost surely, 2^256316170 is an apocalyptic number.

256316170 is a deficient number, since it is larger than the sum of its proper divisors (246995798).

256316170 is a wasteful number, since it uses less digits than its factorization.

256316170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330165.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 256316170 is about 16009.8772637394. The cubic root of 256316170 is about 635.2217135555.

The spelling of 256316170 in words is "two hundred fifty-six million, three hundred sixteen thousand, one hundred seventy".