16679633387 has 2 divisors, whose sum is σ = 16679633388. Its totient is φ = 16679633386.

The previous prime is 16679633353. The next prime is 16679633389. The reversal of 16679633387 is 78333697661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16679633387 - 2¹⁰ = 16679632363 is a prime.

Together with 16679633389, 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 (16679633389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8339816693 + 8339816694.

It is an arithmetic number, because the mean of its divisors is an integer number (8339816694).

Almost surely, 2^16679633387 is an apocalyptic number.

16679633387 is a deficient number, since it is larger than the sum of its proper divisors (1).

16679633387 is an equidigital number, since it uses as much as digits as its factorization.

16679633387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20575296, while the sum is 59.

The spelling of 16679633387 in words is "sixteen billion, six hundred seventy-nine million, six hundred thirty-three thousand, three hundred eighty-seven".