256701163 has 8 divisors (see below), whose sum is σ = 259692032. Its totient is φ = 253725696.

The previous prime is 256701143. The next prime is 256701167. The reversal of 256701163 is 361107652.

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

It is a cyclic number.

It is not a de Polignac number, because 256701163 - 2⁵ = 256701131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256701167) 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, 31531 + ... + 38827.

It is an arithmetic number, because the mean of its divisors is an integer number (32461504).

Almost surely, 2^256701163 is an apocalyptic number.

256701163 is a deficient number, since it is larger than the sum of its proper divisors (2990869).

256701163 is a wasteful number, since it uses less digits than its factorization.

256701163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 256701163 is about 16021.8963609181. The cubic root of 256701163 is about 635.5395938415.

The spelling of 256701163 in words is "two hundred fifty-six million, seven hundred one thousand, one hundred sixty-three".