66966364 has 6 divisors (see below), whose sum is σ = 117191144. Its totient is φ = 33483180.

The previous prime is 66966329. The next prime is 66966371. The reversal of 66966364 is 46366966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8370792 + ... + 8370799.

Almost surely, 2^66966364 is an apocalyptic number.

It is an amenable number.

66966364 is a deficient number, since it is larger than the sum of its proper divisors (50224780).

66966364 is a wasteful number, since it uses less digits than its factorization.

66966364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16741595 (or 16741593 counting only the distinct ones).

The product of its digits is 839808, while the sum is 46.

The square root of 66966364 is about 8183.2978682191. The cubic root of 66966364 is about 406.0868313880.

The spelling of 66966364 in words is "sixty-six million, nine hundred sixty-six thousand, three hundred sixty-four".