16678303307 has 2 divisors, whose sum is σ = 16678303308. Its totient is φ = 16678303306.

The previous prime is 16678303259. The next prime is 16678303309. The reversal of 16678303307 is 70330387661.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70330387661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16678303307 - 2³² = 12383336011 is a prime.

Together with 16678303309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16678303309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8339151653 + 8339151654.

It is an arithmetic number, because the mean of its divisors is an integer number (8339151654).

Almost surely, 2^16678303307 is an apocalyptic number.

16678303307 is a deficient number, since it is larger than the sum of its proper divisors (1).

16678303307 is an equidigital number, since it uses as much as digits as its factorization.

16678303307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 16678303307 in words is "sixteen billion, six hundred seventy-eight million, three hundred three thousand, three hundred seven".