16918860128 has 48 divisors (see below), whose sum is σ = 34319103840. Its totient is φ = 8206488576.

The previous prime is 16918860121. The next prime is 16918860149. The reversal of 16918860128 is 82106881961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16918860121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94901 + ... + 206987.

It is an arithmetic number, because the mean of its divisors is an integer number (714981330).

Almost surely, 2^16918860128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16918860128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17159551920).

16918860128 is an abundant number, since it is smaller than the sum of its proper divisors (17400243712).

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

16918860128 is a wasteful number, since it uses less digits than its factorization.

16918860128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112239 (or 112231 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 50.

The spelling of 16918860128 in words is "sixteen billion, nine hundred eighteen million, eight hundred sixty thousand, one hundred twenty-eight".