256662411 has 8 divisors (see below), whose sum is σ = 348673680. Its totient is φ = 167879712.

The previous prime is 256662397. The next prime is 256662421. The reversal of 256662411 is 114266652.

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

It is not a de Polignac number, because 256662411 - 2¹¹ = 256660363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256662421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806956 + ... + 807273.

It is an arithmetic number, because the mean of its divisors is an integer number (43584210).

Almost surely, 2^256662411 is an apocalyptic number.

256662411 is a deficient number, since it is larger than the sum of its proper divisors (92011269).

256662411 is a wasteful number, since it uses less digits than its factorization.

256662411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614285.

The product of its digits is 17280, while the sum is 33.

The square root of 256662411 is about 16020.6869702894. The cubic root of 256662411 is about 635.5076115558.

The spelling of 256662411 in words is "two hundred fifty-six million, six hundred sixty-two thousand, four hundred eleven".