16775722679 has 2 divisors, whose sum is σ = 16775722680. Its totient is φ = 16775722678.

The previous prime is 16775722673. The next prime is 16775722721. The reversal of 16775722679 is 97622757761.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16775722679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16775722673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8387861339 + 8387861340.

It is an arithmetic number, because the mean of its divisors is an integer number (8387861340).

Almost surely, 2^16775722679 is an apocalyptic number.

16775722679 is a deficient number, since it is larger than the sum of its proper divisors (1).

16775722679 is an equidigital number, since it uses as much as digits as its factorization.

16775722679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15558480, while the sum is 59.

The spelling of 16775722679 in words is "sixteen billion, seven hundred seventy-five million, seven hundred twenty-two thousand, six hundred seventy-nine".