188013666329 has 2 divisors, whose sum is σ = 188013666330. Its totient is φ = 188013666328.

The previous prime is 188013666251. The next prime is 188013666353. The reversal of 188013666329 is 923666310881.

188013666329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157488335104 + 30525331225 = 396848^2 + 174715^2 .

It is an emirp because it is prime and its reverse (923666310881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188013666329 - 2¹⁶ = 188013600793 is a prime.

It is not a weakly prime, because it can be changed into another prime (188013666629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94006833164 + 94006833165.

It is an arithmetic number, because the mean of its divisors is an integer number (94006833165).

Almost surely, 2^188013666329 is an apocalyptic number.

It is an amenable number.

188013666329 is a deficient number, since it is larger than the sum of its proper divisors (1).

188013666329 is an equidigital number, since it uses as much as digits as its factorization.

188013666329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 188013666329 in words is "one hundred eighty-eight billion, thirteen million, six hundred sixty-six thousand, three hundred twenty-nine".