66083803 has 2 divisors, whose sum is σ = 66083804. Its totient is φ = 66083802.

The previous prime is 66083783. The next prime is 66083839. The reversal of 66083803 is 30838066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66083803 - 2²¹ = 63986651 is a prime.

It is not a weakly prime, because it can be changed into another prime (66083503) 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, 33041901 + 33041902.

It is an arithmetic number, because the mean of its divisors is an integer number (33041902).

Almost surely, 2^66083803 is an apocalyptic number.

66083803 is a deficient number, since it is larger than the sum of its proper divisors (1).

66083803 is an equidigital number, since it uses as much as digits as its factorization.

66083803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 66083803 is about 8129.1944865405. The cubic root of 66083803 is about 404.2949741825.

The spelling of 66083803 in words is "sixty-six million, eighty-three thousand, eight hundred three".