16668718848 has 432 divisors, whose sum is σ = 53263042560. Its totient is φ = 4993228800.

The previous prime is 16668718831. The next prime is 16668718889. The reversal of 16668718848 is 84881786661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96350890 + ... + 96351062.

It is an arithmetic number, because the mean of its divisors is an integer number (123294080).

Almost surely, 2^16668718848 is an apocalyptic number.

16668718848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16668718848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26631521280).

16668718848 is an abundant number, since it is smaller than the sum of its proper divisors (36594323712).

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

16668718848 is a wasteful number, since it uses less digits than its factorization.

16668718848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 299 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 63.

The spelling of 16668718848 in words is "sixteen billion, six hundred sixty-eight million, seven hundred eighteen thousand, eight hundred forty-eight".