166835185005 has 16 divisors (see below), whose sum is σ = 267330605184. Its totient is φ = 88847328960.

The previous prime is 166835184979. The next prime is 166835185039. The reversal of 166835185005 is 500581538661.

It is not a de Polignac number, because 166835185005 - 2⁹ = 166835184493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8204281 + ... + 8224590.

It is an arithmetic number, because the mean of its divisors is an integer number (16708162824).

Almost surely, 2^166835185005 is an apocalyptic number.

166835185005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166835185005 is a deficient number, since it is larger than the sum of its proper divisors (100495420179).

166835185005 is a wasteful number, since it uses less digits than its factorization.

166835185005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429556.

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 166835185005 in words is "one hundred sixty-six billion, eight hundred thirty-five million, one hundred eighty-five thousand, five".