16678332849 has 8 divisors (see below), whose sum is σ = 22542404512. Its totient is φ = 10966574880.

The previous prime is 16678332821. The next prime is 16678332877. The reversal of 16678332849 is 94823387661.

16678332849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16678332821) and next prime (16678332877).

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

It is not a de Polignac number, because 16678332849 - 2⁹ = 16678332337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16678332809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38078167 + ... + 38078604.

It is an arithmetic number, because the mean of its divisors is an integer number (2817800564).

Almost surely, 2^16678332849 is an apocalyptic number.

It is an amenable number.

16678332849 is a deficient number, since it is larger than the sum of its proper divisors (5864071663).

16678332849 is an equidigital number, since it uses as much as digits as its factorization.

16678332849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76156847.

The product of its digits is 10450944, while the sum is 57.

The spelling of 16678332849 in words is "sixteen billion, six hundred seventy-eight million, three hundred thirty-two thousand, eight hundred forty-nine".