16764661327 has 2 divisors, whose sum is σ = 16764661328. Its totient is φ = 16764661326.

The previous prime is 16764661321. The next prime is 16764661357. The reversal of 16764661327 is 72316646761.

It is a weak prime.

It is an emirp because it is prime and its reverse (72316646761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16764661327 - 2¹¹ = 16764659279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16764661321) 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, 8382330663 + 8382330664.

It is an arithmetic number, because the mean of its divisors is an integer number (8382330664).

Almost surely, 2^16764661327 is an apocalyptic number.

16764661327 is a deficient number, since it is larger than the sum of its proper divisors (1).

16764661327 is an equidigital number, since it uses as much as digits as its factorization.

16764661327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 49.

The spelling of 16764661327 in words is "sixteen billion, seven hundred sixty-four million, six hundred sixty-one thousand, three hundred twenty-seven".