66125142299 has 2 divisors, whose sum is σ = 66125142300. Its totient is φ = 66125142298.

The previous prime is 66125142247. The next prime is 66125142359. The reversal of 66125142299 is 99224152166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66125142299 - 2¹⁶ = 66125076763 is a prime.

It is not a weakly prime, because it can be changed into another prime (66125142799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33062571149 + 33062571150.

It is an arithmetic number, because the mean of its divisors is an integer number (33062571150).

Almost surely, 2^66125142299 is an apocalyptic number.

66125142299 is a deficient number, since it is larger than the sum of its proper divisors (1).

66125142299 is an equidigital number, since it uses as much as digits as its factorization.

66125142299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The spelling of 66125142299 in words is "sixty-six billion, one hundred twenty-five million, one hundred forty-two thousand, two hundred ninety-nine".