160160221 has 4 divisors (see below), whose sum is σ = 172480252. Its totient is φ = 147840192.

The previous prime is 160160191. The next prime is 160160233. The reversal of 160160221 is 122061061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19263321 + 140896900 = 4389^2 + 11870^2 .

It is a cyclic number.

It is not a de Polignac number, because 160160221 - 2⁷ = 160160093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160110221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6159996 + ... + 6160021.

It is an arithmetic number, because the mean of its divisors is an integer number (43120063).

Almost surely, 2^160160221 is an apocalyptic number.

It is an amenable number.

160160221 is a deficient number, since it is larger than the sum of its proper divisors (12320031).

160160221 is a wasteful number, since it uses less digits than its factorization.

160160221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320030.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 160160221 is about 12655.4423470695. The cubic root of 160160221 is about 543.0646739925.

The spelling of 160160221 in words is "one hundred sixty million, one hundred sixty thousand, two hundred twenty-one".