66430742267 has 2 divisors, whose sum is σ = 66430742268. Its totient is φ = 66430742266.

The previous prime is 66430742227. The next prime is 66430742309. The reversal of 66430742267 is 76224703466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66430742267 - 2¹⁴ = 66430725883 is a prime.

It is not a weakly prime, because it can be changed into another prime (66430742227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33215371133 + 33215371134.

It is an arithmetic number, because the mean of its divisors is an integer number (33215371134).

Almost surely, 2^66430742267 is an apocalyptic number.

66430742267 is a deficient number, since it is larger than the sum of its proper divisors (1).

66430742267 is an equidigital number, since it uses as much as digits as its factorization.

66430742267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 66430742267 in words is "sixty-six billion, four hundred thirty million, seven hundred forty-two thousand, two hundred sixty-seven".