16517447122343 has 4 divisors (see below), whose sum is σ = 16636277677320. Its totient is φ = 16398616567368.

The previous prime is 16517447122331. The next prime is 16517447122357. The reversal of 16517447122343 is 34322174471561.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16517447122343 - 2⁸ = 16517447122087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16517447122291 and 16517447122300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16517447622343) 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, 59415277280 + ... + 59415277557.

It is an arithmetic number, because the mean of its divisors is an integer number (4159069419330).

Almost surely, 2^{16517447122343} is an apocalyptic number.

16517447122343 is a deficient number, since it is larger than the sum of its proper divisors (118830554977).

16517447122343 is a wasteful number, since it uses less digits than its factorization.

16517447122343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118830554976.

The product of its digits is 3386880, while the sum is 50.

The spelling of 16517447122343 in words is "sixteen trillion, five hundred seventeen billion, four hundred forty-seven million, one hundred twenty-two thousand, three hundred forty-three".