160171310991686 has 4 divisors (see below), whose sum is σ = 240256966487532. Its totient is φ = 80085655495842.

The previous prime is 160171310991683. The next prime is 160171310991689. The reversal of 160171310991686 is 686199013171061.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (160171310991683) and next prime (160171310991689).

It is a super-2 number, since 2×160171310991686² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160171310991683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40042827747920 + ... + 40042827747923.

It is an arithmetic number, because the mean of its divisors is an integer number (60064241621883).

Almost surely, 2^{160171310991686} is an apocalyptic number.

160171310991686 is a deficient number, since it is larger than the sum of its proper divisors (80085655495846).

160171310991686 is an equidigital number, since it uses as much as digits as its factorization.

160171310991686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80085655495845.

The product of its (nonzero) digits is 2939328, while the sum is 59.

The spelling of 160171310991686 in words is "one hundred sixty trillion, one hundred seventy-one billion, three hundred ten million, nine hundred ninety-one thousand, six hundred eighty-six".