16678381384 has 16 divisors (see below), whose sum is σ = 35739388800. Its totient is φ = 7147877712.

The previous prime is 16678381339. The next prime is 16678381387. The reversal of 16678381384 is 48318387661.

It is not an unprimeable number, because it can be changed into a prime (16678381387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148914064 + ... + 148914175.

It is an arithmetic number, because the mean of its divisors is an integer number (2233711800).

Almost surely, 2^16678381384 is an apocalyptic number.

16678381384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16678381384 is an abundant number, since it is smaller than the sum of its proper divisors (19061007416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16678381384 is a wasteful number, since it uses less digits than its factorization.

16678381384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297828252 (or 297828248 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 16678381384 in words is "sixteen billion, six hundred seventy-eight million, three hundred eighty-one thousand, three hundred eighty-four".