66046204439 has 2 divisors, whose sum is σ = 66046204440. Its totient is φ = 66046204438.

The previous prime is 66046204423. The next prime is 66046204529. The reversal of 66046204439 is 93440264066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66046204439 - 2⁴ = 66046204423 is a prime.

It is a super-2 number, since 2×66046204439² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66046204439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66046204639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33023102219 + 33023102220.

It is an arithmetic number, because the mean of its divisors is an integer number (33023102220).

Almost surely, 2^66046204439 is an apocalyptic number.

66046204439 is a deficient number, since it is larger than the sum of its proper divisors (1).

66046204439 is an equidigital number, since it uses as much as digits as its factorization.

66046204439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 66046204439 in words is "sixty-six billion, forty-six million, two hundred four thousand, four hundred thirty-nine".