66630363 has 4 divisors (see below), whose sum is σ = 88840488. Its totient is φ = 44420240.

The previous prime is 66630353. The next prime is 66630413. The reversal of 66630363 is 36303666.

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

It is a cyclic number.

It is not a de Polignac number, because 66630363 - 2⁸ = 66630107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66630353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11105058 + ... + 11105063.

It is an arithmetic number, because the mean of its divisors is an integer number (22210122).

Almost surely, 2^66630363 is an apocalyptic number.

66630363 is a deficient number, since it is larger than the sum of its proper divisors (22210125).

66630363 is a wasteful number, since it uses less digits than its factorization.

66630363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22210124.

The product of its (nonzero) digits is 34992, while the sum is 33.

The square root of 66630363 is about 8162.7423700617. The cubic root of 66630363 is about 405.4065175961.

The spelling of 66630363 in words is "sixty-six million, six hundred thirty thousand, three hundred sixty-three".