256179011 has 16 divisors (see below), whose sum is σ = 290014560. Its totient is φ = 224152320.

The previous prime is 256178987. The next prime is 256179013. The reversal of 256179011 is 110971652.

It is a cyclic number.

It is not a de Polignac number, because 256179011 - 2¹⁸ = 255916867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256179013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117911 + ... + 120063.

It is an arithmetic number, because the mean of its divisors is an integer number (18125910).

Almost surely, 2^256179011 is an apocalyptic number.

256179011 is a deficient number, since it is larger than the sum of its proper divisors (33835549).

256179011 is a wasteful number, since it uses less digits than its factorization.

256179011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 256179011 is about 16005.5931161579. The cubic root of 256179011 is about 635.1083874752.

The spelling of 256179011 in words is "two hundred fifty-six million, one hundred seventy-nine thousand, eleven".