66710010043 has 2 divisors, whose sum is σ = 66710010044. Its totient is φ = 66710010042.

The previous prime is 66710010041. The next prime is 66710010067. The reversal of 66710010043 is 34001001766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66710010043 - 2¹ = 66710010041 is a prime.

Together with 66710010041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 66710009993 and 66710010020.

It is not a weakly prime, because it can be changed into another prime (66710010041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33355005021 + 33355005022.

It is an arithmetic number, because the mean of its divisors is an integer number (33355005022).

Almost surely, 2^66710010043 is an apocalyptic number.

66710010043 is a deficient number, since it is larger than the sum of its proper divisors (1).

66710010043 is an equidigital number, since it uses as much as digits as its factorization.

66710010043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The spelling of 66710010043 in words is "sixty-six billion, seven hundred ten million, ten thousand, forty-three".