16680239179 has 2 divisors, whose sum is σ = 16680239180. Its totient is φ = 16680239178.

The previous prime is 16680239089. The next prime is 16680239201. The reversal of 16680239179 is 97193208661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16680239179 is a prime.

It is not a weakly prime, because it can be changed into another prime (16680209179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8340119589 + 8340119590.

It is an arithmetic number, because the mean of its divisors is an integer number (8340119590).

Almost surely, 2^16680239179 is an apocalyptic number.

16680239179 is a deficient number, since it is larger than the sum of its proper divisors (1).

16680239179 is an equidigital number, since it uses as much as digits as its factorization.

16680239179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 16680239179 in words is "sixteen billion, six hundred eighty million, two hundred thirty-nine thousand, one hundred seventy-nine".