160636081 has 4 divisors (see below), whose sum is σ = 160664932. Its totient is φ = 160607232.

The previous prime is 160636067. The next prime is 160636093. The reversal of 160636081 is 180636061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180636061 = 643 ⋅280927.

It can be written as a sum of positive squares in 2 ways, for example, as 55368481 + 105267600 = 7441^2 + 10260^2 .

It is a cyclic number.

It is not a de Polignac number, because 160636081 - 2²⁵ = 127081649 is a prime.

It is a super-2 number, since 2×160636081² = 51607901038077122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160636001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (40166233).

Almost surely, 2^160636081 is an apocalyptic number.

It is an amenable number.

160636081 is a deficient number, since it is larger than the sum of its proper divisors (28851).

160636081 is an equidigital number, since it uses as much as digits as its factorization.

160636081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28850.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 160636081 is about 12674.2290100818. The cubic root of 160636081 is about 543.6019843563.

The spelling of 160636081 in words is "one hundred sixty million, six hundred thirty-six thousand, eighty-one".