160636891 has 2 divisors, whose sum is σ = 160636892. Its totient is φ = 160636890.

The previous prime is 160636877. The next prime is 160636907. The reversal of 160636891 is 198636061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 160636891 - 2⁹ = 160636379 is a prime.

It is not a weakly prime, because it can be changed into another prime (160636391) 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 as a sum of consecutive naturals, namely, 80318445 + 80318446.

It is an arithmetic number, because the mean of its divisors is an integer number (80318446).

Almost surely, 2^160636891 is an apocalyptic number.

160636891 is a deficient number, since it is larger than the sum of its proper divisors (1).

160636891 is an equidigital number, since it uses as much as digits as its factorization.

160636891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 160636891 is about 12674.2609646480. The cubic root of 160636891 is about 543.6028980507.

The spelling of 160636891 in words is "one hundred sixty million, six hundred thirty-six thousand, eight hundred ninety-one".