66331466036519 has 2 divisors, whose sum is σ = 66331466036520. Its totient is φ = 66331466036518.

The previous prime is 66331466036453. The next prime is 66331466036569. The reversal of 66331466036519 is 91563066413366.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66331466036519 - 2¹⁶ = 66331465970983 is a prime.

It is a super-2 number, since 2×66331466036519² (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 (66331466036569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33165733018259 + 33165733018260.

It is an arithmetic number, because the mean of its divisors is an integer number (33165733018260).

Almost surely, 2^{66331466036519} is an apocalyptic number.

66331466036519 is a deficient number, since it is larger than the sum of its proper divisors (1).

66331466036519 is an equidigital number, since it uses as much as digits as its factorization.

66331466036519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37791360, while the sum is 59.

The spelling of 66331466036519 in words is "sixty-six trillion, three hundred thirty-one billion, four hundred sixty-six million, thirty-six thousand, five hundred nineteen".