16706073703217 has 4 divisors (see below), whose sum is σ = 16712291076096. Its totient is φ = 16699856330340.

The previous prime is 16706073703201. The next prime is 16706073703243. The reversal of 16706073703217 is 71230737060761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16706073703217 - 2⁴ = 16706073703201 is a prime.

It is a super-2 number, since 2×16706073703217² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16706073603217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3108682409 + ... + 3108687782.

It is an arithmetic number, because the mean of its divisors is an integer number (4178072769024).

Almost surely, 2^{16706073703217} is an apocalyptic number.

It is an amenable number.

16706073703217 is a deficient number, since it is larger than the sum of its proper divisors (6217372879).

16706073703217 is an equidigital number, since it uses as much as digits as its factorization.

16706073703217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217372878.

The product of its (nonzero) digits is 1555848, while the sum is 50.

The spelling of 16706073703217 in words is "sixteen trillion, seven hundred six billion, seventy-three million, seven hundred three thousand, two hundred seventeen".