66133346 has 4 divisors (see below), whose sum is σ = 99200022. Its totient is φ = 33066672.

The previous prime is 66133337. The next prime is 66133351. The reversal of 66133346 is 64333166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44742721 + 21390625 = 6689^2 + 4625^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16533335 + ... + 16533338.

Almost surely, 2^66133346 is an apocalyptic number.

66133346 is a deficient number, since it is larger than the sum of its proper divisors (33066676).

66133346 is a wasteful number, since it uses less digits than its factorization.

66133346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33066675.

The product of its digits is 23328, while the sum is 32.

The square root of 66133346 is about 8132.2411425142. The cubic root of 66133346 is about 404.3959822035.

The spelling of 66133346 in words is "sixty-six million, one hundred thirty-three thousand, three hundred forty-six".