16671216343 has 2 divisors, whose sum is σ = 16671216344. Its totient is φ = 16671216342.

The previous prime is 16671216323. The next prime is 16671216361. The reversal of 16671216343 is 34361217661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16671216343 - 2⁹ = 16671215831 is a prime.

It is a super-2 number, since 2×16671216343² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16671216296 and 16671216305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16671216313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8335608171 + 8335608172.

It is an arithmetic number, because the mean of its divisors is an integer number (8335608172).

Almost surely, 2^16671216343 is an apocalyptic number.

16671216343 is a deficient number, since it is larger than the sum of its proper divisors (1).

16671216343 is an equidigital number, since it uses as much as digits as its factorization.

16671216343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The spelling of 16671216343 in words is "sixteen billion, six hundred seventy-one million, two hundred sixteen thousand, three hundred forty-three".