16656314219 has 2 divisors, whose sum is σ = 16656314220. Its totient is φ = 16656314218.

The previous prime is 16656314203. The next prime is 16656314231. The reversal of 16656314219 is 91241365661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16656314219 - 2⁴ = 16656314203 is a prime.

It is a super-2 number, since 2×16656314219² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16656314219.

It is not a weakly prime, because it can be changed into another prime (16656314119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8328157109 + 8328157110.

It is an arithmetic number, because the mean of its divisors is an integer number (8328157110).

Almost surely, 2^16656314219 is an apocalyptic number.

16656314219 is a deficient number, since it is larger than the sum of its proper divisors (1).

16656314219 is an equidigital number, since it uses as much as digits as its factorization.

16656314219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The spelling of 16656314219 in words is "sixteen billion, six hundred fifty-six million, three hundred fourteen thousand, two hundred nineteen".