66643101140303 has 2 divisors, whose sum is σ = 66643101140304. Its totient is φ = 66643101140302.

The previous prime is 66643101140263. The next prime is 66643101140393. The reversal of 66643101140303 is 30304110134666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66643101140303 - 2³⁶ = 66574381663567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66643101140393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33321550570151 + 33321550570152.

It is an arithmetic number, because the mean of its divisors is an integer number (33321550570152).

Almost surely, 2^{66643101140303} is an apocalyptic number.

66643101140303 is a deficient number, since it is larger than the sum of its proper divisors (1).

66643101140303 is an equidigital number, since it uses as much as digits as its factorization.

66643101140303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

Adding to 66643101140303 its reverse (30304110134666), we get a palindrome (96947211274969).

The spelling of 66643101140303 in words is "sixty-six trillion, six hundred forty-three billion, one hundred one million, one hundred forty thousand, three hundred three".