66871134 has 36 divisors (see below), whose sum is σ = 159261648. Its totient is φ = 20263320.

The previous prime is 66871117. The next prime is 66871141. The reversal of 66871134 is 43117866.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13174 + ... + 17529.

Almost surely, 2^66871134 is an apocalyptic number.

66871134 is an abundant number, since it is smaller than the sum of its proper divisors (92390514).

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

66871134 is a wasteful number, since it uses less digits than its factorization.

66871134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30733 (or 30719 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 66871134 is about 8177.4772393447. The cubic root of 66871134 is about 405.8942471699.

The spelling of 66871134 in words is "sixty-six million, eight hundred seventy-one thousand, one hundred thirty-four".