160856857 has 12 divisors (see below), whose sum is σ = 187613220. Its totient is φ = 137513376.

The previous prime is 160856809. The next prime is 160856863. The reversal of 160856857 is 758658061.

It can be written as a sum of positive squares in 2 ways, for example, as 130507776 + 30349081 = 11424^2 + 5509^2 .

It is not a de Polignac number, because 160856857 - 2²³ = 152468249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160856867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15319 + ... + 23587.

It is an arithmetic number, because the mean of its divisors is an integer number (15634435).

Almost surely, 2^160856857 is an apocalyptic number.

It is an amenable number.

160856857 is a deficient number, since it is larger than the sum of its proper divisors (26756363).

160856857 is an equidigital number, since it uses as much as digits as its factorization.

160856857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8680 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 160856857 is about 12682.9356617465. The cubic root of 160856857 is about 543.8509100250.

The spelling of 160856857 in words is "one hundred sixty million, eight hundred fifty-six thousand, eight hundred fifty-seven".