16758667997 has 8 divisors (see below), whose sum is σ = 17500819776. Its totient is φ = 16017642432.

The previous prime is 16758667993. The next prime is 16758668009. The reversal of 16758667997 is 79976685761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16758667997 - 2² = 16758667993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16758667997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16758667993) 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 in 7 ways as a sum of consecutive naturals, for example, 251063 + ... + 310724.

It is an arithmetic number, because the mean of its divisors is an integer number (2187602472).

Almost surely, 2^16758667997 is an apocalyptic number.

It is an amenable number.

16758667997 is a deficient number, since it is larger than the sum of its proper divisors (742151779).

16758667997 is a wasteful number, since it uses less digits than its factorization.

16758667997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563107.

The product of its digits is 240045120, while the sum is 71.

The spelling of 16758667997 in words is "sixteen billion, seven hundred fifty-eight million, six hundred sixty-seven thousand, nine hundred ninety-seven".