16684167144979 has 2 divisors, whose sum is σ = 16684167144980. Its totient is φ = 16684167144978.

The previous prime is 16684167144949. The next prime is 16684167145003. The reversal of 16684167144979 is 97944176148661.

It is a strong prime.

It is an emirp because it is prime and its reverse (97944176148661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16684167144979 - 2⁵ = 16684167144947 is a prime.

It is a super-2 number, since 2×16684167144979² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16684167144919) 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, 8342083572489 + 8342083572490.

It is an arithmetic number, because the mean of its divisors is an integer number (8342083572490).

Almost surely, 2^{16684167144979} is an apocalyptic number.

16684167144979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16684167144979 is an equidigital number, since it uses as much as digits as its factorization.

16684167144979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 438939648, while the sum is 73.

The spelling of 16684167144979 in words is "sixteen trillion, six hundred eighty-four billion, one hundred sixty-seven million, one hundred forty-four thousand, nine hundred seventy-nine".