256059666 has 48 divisors (see below), whose sum is σ = 568998144. Its totient is φ = 83184192.

The previous prime is 256059641. The next prime is 256059689. The reversal of 256059666 is 666950652.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264315 + ... + 265281.

It is an arithmetic number, because the mean of its divisors is an integer number (11854128).

Almost surely, 2^256059666 is an apocalyptic number.

256059666 is an abundant number, since it is smaller than the sum of its proper divisors (312938478).

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

256059666 is a wasteful number, since it uses less digits than its factorization.

256059666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 256059666 is about 16001.8644538691. The cubic root of 256059666 is about 635.0097470965.

It can be divided in two parts, 2560 and 59666, that added together give a palindrome (62226).

The spelling of 256059666 in words is "two hundred fifty-six million, fifty-nine thousand, six hundred sixty-six".