166835185185 has 16 divisors (see below), whose sum is σ = 266941362816. Its totient is φ = 88977076608.

The previous prime is 166835185171. The next prime is 166835185243. The reversal of 166835185185 is 581581538661.

It is not a de Polignac number, because 166835185185 - 2¹⁰ = 166835184161 is a prime.

166835185185 is a modest number, since divided by 185185 gives 166835 as remainder.

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 15 ways as a sum of consecutive naturals, for example, 1463157 + ... + 1573053.

It is an arithmetic number, because the mean of its divisors is an integer number (16683835176).

Almost surely, 2^166835185185 is an apocalyptic number.

166835185185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166835185185 is a deficient number, since it is larger than the sum of its proper divisors (100106177631).

166835185185 is a wasteful number, since it uses less digits than its factorization.

166835185185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211112.

The product of its digits is 6912000, while the sum is 57.

The spelling of 166835185185 in words is "one hundred sixty-six billion, eight hundred thirty-five million, one hundred eighty-five thousand, one hundred eighty-five".