66336812 has 6 divisors (see below), whose sum is σ = 116089428. Its totient is φ = 33168404.

The previous prime is 66336769. The next prime is 66336817. The reversal of 66336812 is 21863366.

66336812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66336817) by changing a digit.

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 as a sum of consecutive naturals, namely, 8292098 + ... + 8292105.

It is an arithmetic number, because the mean of its divisors is an integer number (19348238).

Almost surely, 2^66336812 is an apocalyptic number.

It is an amenable number.

66336812 is a deficient number, since it is larger than the sum of its proper divisors (49752616).

66336812 is a wasteful number, since it uses less digits than its factorization.

66336812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16584207 (or 16584205 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 66336812 is about 8144.7413709706. The cubic root of 66336812 is about 404.8102794783.

The spelling of 66336812 in words is "sixty-six million, three hundred thirty-six thousand, eight hundred twelve".