16959605069389 has 2 divisors, whose sum is σ = 16959605069390. Its totient is φ = 16959605069388.

The previous prime is 16959605069383. The next prime is 16959605069471. The reversal of 16959605069389 is 98396050695961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13524079800100 + 3435525269289 = 3677510^2 + 1853517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16959605069389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16959605069383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8479802534694 + 8479802534695.

It is an arithmetic number, because the mean of its divisors is an integer number (8479802534695).

Almost surely, 2^{16959605069389} is an apocalyptic number.

It is an amenable number.

16959605069389 is a deficient number, since it is larger than the sum of its proper divisors (1).

16959605069389 is an equidigital number, since it uses as much as digits as its factorization.

16959605069389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 850305600, while the sum is 76.

The spelling of 16959605069389 in words is "sixteen trillion, nine hundred fifty-nine billion, six hundred five million, sixty-nine thousand, three hundred eighty-nine".