66315444119 has 2 divisors, whose sum is σ = 66315444120. Its totient is φ = 66315444118.

The previous prime is 66315444103. The next prime is 66315444149. The reversal of 66315444119 is 91144451366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66315444119 - 2⁴ = 66315444103 is a prime.

It is a super-2 number, since 2×66315444119² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66315444119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66315444149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33157722059 + 33157722060.

It is an arithmetic number, because the mean of its divisors is an integer number (33157722060).

Almost surely, 2^66315444119 is an apocalyptic number.

66315444119 is a deficient number, since it is larger than the sum of its proper divisors (1).

66315444119 is an equidigital number, since it uses as much as digits as its factorization.

66315444119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The spelling of 66315444119 in words is "sixty-six billion, three hundred fifteen million, four hundred forty-four thousand, one hundred nineteen".