16840006717 has 4 divisors (see below), whose sum is σ = 17726322880. Its totient is φ = 15953690556.

The previous prime is 16840006697. The next prime is 16840006721. The reversal of 16840006717 is 71760004861.

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 de Polignac number, because none of the positive numbers 2^k-16840006717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16840006717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16840003717) 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, 443158053 + ... + 443158090.

It is an arithmetic number, because the mean of its divisors is an integer number (4431580720).

Almost surely, 2^16840006717 is an apocalyptic number.

It is an amenable number.

16840006717 is a deficient number, since it is larger than the sum of its proper divisors (886316163).

16840006717 is an equidigital number, since it uses as much as digits as its factorization.

16840006717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886316162.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 16840006717 in words is "sixteen billion, eight hundred forty million, six thousand, seven hundred seventeen".