166834872 has 48 divisors (see below), whose sum is σ = 478427040. Its totient is φ = 52339968.

The previous prime is 166834867. The next prime is 166834873. The reversal of 166834872 is 278438661.

166834872 is a `hidden beast` number, since 166 + 8 + 3 + 487 + 2 = 666.

166834872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166834873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66928 + ... + 69375.

It is an arithmetic number, because the mean of its divisors is an integer number (9967230).

Almost surely, 2^166834872 is an apocalyptic number.

166834872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166834872 is an abundant number, since it is smaller than the sum of its proper divisors (311592168).

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

166834872 is a wasteful number, since it uses less digits than its factorization.

166834872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136332 (or 136325 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 166834872 is about 12916.4574090576. The cubic root of 166834872 is about 550.5062798275.

The spelling of 166834872 in words is "one hundred sixty-six million, eight hundred thirty-four thousand, eight hundred seventy-two".