66334164 has 96 divisors (see below), whose sum is σ = 173746944. Its totient is φ = 19568640.

The previous prime is 66334159. The next prime is 66334207. The reversal of 66334164 is 46143366.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 586972 + ... + 587084.

It is an arithmetic number, because the mean of its divisors is an integer number (1809864).

Almost surely, 2^66334164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66334164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86873472).

66334164 is an abundant number, since it is smaller than the sum of its proper divisors (107412780).

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

66334164 is a wasteful number, since it uses less digits than its factorization.

66334164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 66334164 is about 8144.5788104726. The cubic root of 66334164 is about 404.8048930679.

The spelling of 66334164 in words is "sixty-six million, three hundred thirty-four thousand, one hundred sixty-four".