66703303 has 2 divisors, whose sum is σ = 66703304. Its totient is φ = 66703302.

The previous prime is 66703279. The next prime is 66703331. The reversal of 66703303 is 30330766.

It is an a-pointer prime, because the next prime (66703331) can be obtained adding 66703303 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66703303 - 2⁵ = 66703271 is a prime.

It is a super-2 number, since 2×66703303² = 8898661262219618, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66703003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33351651 + 33351652.

It is an arithmetic number, because the mean of its divisors is an integer number (33351652).

Almost surely, 2^66703303 is an apocalyptic number.

66703303 is a deficient number, since it is larger than the sum of its proper divisors (1).

66703303 is an equidigital number, since it uses as much as digits as its factorization.

66703303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 28.

The square root of 66703303 is about 8167.2090092026. The cubic root of 66703303 is about 405.5543959629.

The spelling of 66703303 in words is "sixty-six million, seven hundred three thousand, three hundred three".