66868288703 has 2 divisors, whose sum is σ = 66868288704. Its totient is φ = 66868288702.

The previous prime is 66868288661. The next prime is 66868288727. The reversal of 66868288703 is 30788286866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66868288703 - 2²⁴ = 66851511487 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 (66868288783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33434144351 + 33434144352.

It is an arithmetic number, because the mean of its divisors is an integer number (33434144352).

Almost surely, 2^66868288703 is an apocalyptic number.

66868288703 is a deficient number, since it is larger than the sum of its proper divisors (1).

66868288703 is an equidigital number, since it uses as much as digits as its factorization.

66868288703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 66868288703 in words is "sixty-six billion, eight hundred sixty-eight million, two hundred eighty-eight thousand, seven hundred three".