66133384 has 16 divisors (see below), whose sum is σ = 124278300. Its totient is φ = 32992512.

The previous prime is 66133351. The next prime is 66133391. The reversal of 66133384 is 48333166.

66133384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53728900 + 12404484 = 7330^2 + 3522^2 .

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, 5389 + ... + 12700.

Almost surely, 2^66133384 is an apocalyptic number.

It is an amenable number.

66133384 is a deficient number, since it is larger than the sum of its proper divisors (58144916).

66133384 is a wasteful number, since it uses less digits than its factorization.

66133384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552 (or 18548 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 66133384 is about 8132.2434788931. The cubic root of 66133384 is about 404.3960596584.

The spelling of 66133384 in words is "sixty-six million, one hundred thirty-three thousand, three hundred eighty-four".