166281834 has 8 divisors (see below), whose sum is σ = 332563680. Its totient is φ = 55427276.

The previous prime is 166281803. The next prime is 166281847. The reversal of 166281834 is 438182661.

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

166281834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 166281792 and 166281801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13856814 + ... + 13856825.

It is an arithmetic number, because the mean of its divisors is an integer number (41570460).

Almost surely, 2^166281834 is an apocalyptic number.

166281834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166281834 is a wasteful number, since it uses less digits than its factorization.

166281834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27713644.

The product of its digits is 55296, while the sum is 39.

The square root of 166281834 is about 12895.0313687094. The cubic root of 166281834 is about 549.8973185723.

The spelling of 166281834 in words is "one hundred sixty-six million, two hundred eighty-one thousand, eight hundred thirty-four".