66501283 has 2 divisors, whose sum is σ = 66501284. Its totient is φ = 66501282.

The previous prime is 66501277. The next prime is 66501289. The reversal of 66501283 is 38210566.

It is a balanced prime because it is at equal distance from previous prime (66501277) and next prime (66501289).

It is a cyclic number.

It is not a de Polignac number, because 66501283 - 2⁹ = 66500771 is a prime.

It is not a weakly prime, because it can be changed into another prime (66501289) 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, 33250641 + 33250642.

It is an arithmetic number, because the mean of its divisors is an integer number (33250642).

Almost surely, 2^66501283 is an apocalyptic number.

66501283 is a deficient number, since it is larger than the sum of its proper divisors (1).

66501283 is an equidigital number, since it uses as much as digits as its factorization.

66501283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 66501283 is about 8154.8318805479. The cubic root of 66501283 is about 405.1445564348.

The spelling of 66501283 in words is "sixty-six million, five hundred one thousand, two hundred eighty-three".