16700017620173 has 2 divisors, whose sum is σ = 16700017620174. Its totient is φ = 16700017620172.

The previous prime is 16700017620163. The next prime is 16700017620233. The reversal of 16700017620173 is 37102671000761.

16700017620173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10830430885444 + 5869586734729 = 3290962^2 + 2422723^2 .

It is an emirp because it is prime and its reverse (37102671000761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16700017620173 - 2²⁸ = 16699749184717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16700017620173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16700017620133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8350008810086 + 8350008810087.

It is an arithmetic number, because the mean of its divisors is an integer number (8350008810087).

Almost surely, 2^{16700017620173} is an apocalyptic number.

It is an amenable number.

16700017620173 is a deficient number, since it is larger than the sum of its proper divisors (1).

16700017620173 is an equidigital number, since it uses as much as digits as its factorization.

16700017620173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 41.

The spelling of 16700017620173 in words is "sixteen trillion, seven hundred billion, seventeen million, six hundred twenty thousand, one hundred seventy-three".