66734007333919 has 2 divisors, whose sum is σ = 66734007333920. Its totient is φ = 66734007333918.

The previous prime is 66734007333893. The next prime is 66734007333937. The reversal of 66734007333919 is 91933370043766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66734007333919 - 2⁵ = 66734007333887 is a prime.

It is a super-2 number, since 2×66734007333919² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66734007333419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33367003666959 + 33367003666960.

It is an arithmetic number, because the mean of its divisors is an integer number (33367003666960).

Almost surely, 2^{66734007333919} is an apocalyptic number.

66734007333919 is a deficient number, since it is larger than the sum of its proper divisors (1).

66734007333919 is an equidigital number, since it uses as much as digits as its factorization.

66734007333919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46294416, while the sum is 61.

The spelling of 66734007333919 in words is "sixty-six trillion, seven hundred thirty-four billion, seven million, three hundred thirty-three thousand, nine hundred nineteen".