66630107 has 2 divisors, whose sum is σ = 66630108. Its totient is φ = 66630106.

The previous prime is 66630097. The next prime is 66630121. The reversal of 66630107 is 70103666.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66630107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66630107.

It is not a weakly prime, because it can be changed into another prime (66630307) 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 as a sum of consecutive naturals, namely, 33315053 + 33315054.

It is an arithmetic number, because the mean of its divisors is an integer number (33315054).

Almost surely, 2^66630107 is an apocalyptic number.

66630107 is a deficient number, since it is larger than the sum of its proper divisors (1).

66630107 is an equidigital number, since it uses as much as digits as its factorization.

66630107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 66630107 is about 8162.7266890421. The cubic root of 66630107 is about 405.4059983924.

The spelling of 66630107 in words is "sixty-six million, six hundred thirty thousand, one hundred seven".