66830063 has 2 divisors, whose sum is σ = 66830064. Its totient is φ = 66830062.

The previous prime is 66830059. The next prime is 66830117. The reversal of 66830063 is 36003866.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66830063 - 2² = 66830059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66830263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33415031 + 33415032.

It is an arithmetic number, because the mean of its divisors is an integer number (33415032).

Almost surely, 2^66830063 is an apocalyptic number.

66830063 is a deficient number, since it is larger than the sum of its proper divisors (1).

66830063 is an equidigital number, since it uses as much as digits as its factorization.

66830063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66830063 is about 8174.9656268391. The cubic root of 66830063 is about 405.8111325996.

The spelling of 66830063 in words is "sixty-six million, eight hundred thirty thousand, sixty-three".