16669312781159 has 2 divisors, whose sum is σ = 16669312781160. Its totient is φ = 16669312781158.

The previous prime is 16669312781137. The next prime is 16669312781243. The reversal of 16669312781159 is 95118721396661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16669312781159 - 2¹⁶ = 16669312715623 is a prime.

It is a super-2 number, since 2×16669312781159² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16669312781095 and 16669312781104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16669312787159) 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, 8334656390579 + 8334656390580.

It is an arithmetic number, because the mean of its divisors is an integer number (8334656390580).

Almost surely, 2^{16669312781159} is an apocalyptic number.

16669312781159 is a deficient number, since it is larger than the sum of its proper divisors (1).

16669312781159 is an equidigital number, since it uses as much as digits as its factorization.

16669312781159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 65.

The spelling of 16669312781159 in words is "sixteen trillion, six hundred sixty-nine billion, three hundred twelve million, seven hundred eighty-one thousand, one hundred fifty-nine".