255871664 has 20 divisors (see below), whose sum is σ = 495999504. Its totient is φ = 127871808.

The previous prime is 255871657. The next prime is 255871691. The reversal of 255871664 is 466178552.

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 3 ways as a sum of consecutive naturals, for example, 59474 + ... + 63630.

Almost surely, 2^255871664 is an apocalyptic number.

It is an amenable number.

255871664 is a deficient number, since it is larger than the sum of its proper divisors (240127840).

255871664 is a wasteful number, since it uses less digits than its factorization.

255871664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012 (or 8006 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 255871664 is about 15995.9889972455. The cubic root of 255871664 is about 634.8542985198.

The spelling of 255871664 in words is "two hundred fifty-five million, eight hundred seventy-one thousand, six hundred sixty-four".