256066662 has 8 divisors (see below), whose sum is σ = 512133336. Its totient is φ = 85355552.

The previous prime is 256066649. The next prime is 256066693. The reversal of 256066662 is 266660652.

It is a sphenic number, since it is the product of 3 distinct primes.

256066662 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 256066662.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 21338883 + ... + 21338894.

It is an arithmetic number, because the mean of its divisors is an integer number (64016667).

Almost surely, 2^256066662 is an apocalyptic number.

256066662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256066662 is a wasteful number, since it uses less digits than its factorization.

256066662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42677782.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 256066662 is about 16002.0830519030. The cubic root of 256066662 is about 635.0155302379.

The spelling of 256066662 in words is "two hundred fifty-six million, sixty-six thousand, six hundred sixty-two".