16490360717 has 4 divisors (see below), whose sum is σ = 16641648540. Its totient is φ = 16339072896.

The previous prime is 16490360681. The next prime is 16490360749. The reversal of 16490360717 is 71706309461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7573524676 + 8916836041 = 87026^2 + 94429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16490360717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16490360017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75643748 + ... + 75643965.

It is an arithmetic number, because the mean of its divisors is an integer number (4160412135).

Almost surely, 2^16490360717 is an apocalyptic number.

It is an amenable number.

16490360717 is a deficient number, since it is larger than the sum of its proper divisors (151287823).

16490360717 is a wasteful number, since it uses less digits than its factorization.

16490360717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151287822.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 16490360717 in words is "sixteen billion, four hundred ninety million, three hundred sixty thousand, seven hundred seventeen".