256071696 has 80 divisors (see below), whose sum is σ = 695003136. Its totient is φ = 81088128.

The previous prime is 256071677. The next prime is 256071707. The reversal of 256071696 is 696170652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179241 + ... + 180663.

Almost surely, 2^256071696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256071696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347501568).

256071696 is an abundant number, since it is smaller than the sum of its proper divisors (438931440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256071696 is a wasteful number, since it uses less digits than its factorization.

256071696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 256071696 is about 16002.2403431520. The cubic root of 256071696 is about 635.0196914554.

The spelling of 256071696 in words is "two hundred fifty-six million, seventy-one thousand, six hundred ninety-six".