168669057185 has 8 divisors (see below), whose sum is σ = 203692059816. Its totient is φ = 134075784960.

The previous prime is 168669057169. The next prime is 168669057197. The reversal of 168669057185 is 581750966861.

It can be written as a sum of positive squares in 4 ways, for example, as 18386944 + 168650670241 = 4288^2 + 410671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168669057185 - 2⁴ = 168669057169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 107431736 + ... + 107433305.

It is an arithmetic number, because the mean of its divisors is an integer number (25461507477).

Almost surely, 2^168669057185 is an apocalyptic number.

It is an amenable number.

168669057185 is a deficient number, since it is larger than the sum of its proper divisors (35023002631).

168669057185 is a wasteful number, since it uses less digits than its factorization.

168669057185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214865203.

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 168669057185 in words is "one hundred sixty-eight billion, six hundred sixty-nine million, fifty-seven thousand, one hundred eighty-five".