256064968 has 16 divisors (see below), whose sum is σ = 480372480. Its totient is φ = 127965648.

The previous prime is 256064951. The next prime is 256064971. The reversal of 256064968 is 869460652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10405 + ... + 24907.

It is an arithmetic number, because the mean of its divisors is an integer number (30023280).

Almost surely, 2^256064968 is an apocalyptic number.

It is an amenable number.

256064968 is a deficient number, since it is larger than the sum of its proper divisors (224307512).

256064968 is a wasteful number, since it uses less digits than its factorization.

256064968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16716 (or 16712 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 256064968 is about 16002.0301212065. The cubic root of 256064968 is about 635.0141299272.

It can be divided in two parts, 2560 and 64968, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 256064968 in words is "two hundred fifty-six million, sixty-four thousand, nine hundred sixty-eight".