16946111702449 has 2 divisors, whose sum is σ = 16946111702450. Its totient is φ = 16946111702448.

The previous prime is 16946111702447. The next prime is 16946111702467. The reversal of 16946111702449 is 94420711164961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15437096006049 + 1509015696400 = 3929007^2 + 1228420^2 .

It is a cyclic number.

It is not a de Polignac number, because 16946111702449 - 2¹ = 16946111702447 is a prime.

It is a super-2 number, since 2×16946111702449² (a number of 27 digits) contains 22 as substring.

Together with 16946111702447, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16946111702449.

It is not a weakly prime, because it can be changed into another prime (16946111702447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8473055851224 + 8473055851225.

It is an arithmetic number, because the mean of its divisors is an integer number (8473055851225).

Almost surely, 2^{16946111702449} is an apocalyptic number.

It is an amenable number.

16946111702449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16946111702449 is an equidigital number, since it uses as much as digits as its factorization.

16946111702449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 16946111702449 in words is "sixteen trillion, nine hundred forty-six billion, one hundred eleven million, seven hundred two thousand, four hundred forty-nine".