16708642310249 has 2 divisors, whose sum is σ = 16708642310250. Its totient is φ = 16708642310248.

The previous prime is 16708642310231. The next prime is 16708642310263. The reversal of 16708642310249 is 94201324680761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15019942060249 + 1688700250000 = 3875557^2 + 1299500^2 .

It is a cyclic number.

It is not a de Polignac number, because 16708642310249 - 2⁴⁰ = 15609130682473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16708642310249.

It is not a weakly prime, because it can be changed into another prime (16708642313249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8354321155124 + 8354321155125.

It is an arithmetic number, because the mean of its divisors is an integer number (8354321155125).

Almost surely, 2^{16708642310249} is an apocalyptic number.

It is an amenable number.

16708642310249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16708642310249 is an equidigital number, since it uses as much as digits as its factorization.

16708642310249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 16708642310249 in words is "sixteen trillion, seven hundred eight billion, six hundred forty-two million, three hundred ten thousand, two hundred forty-nine".