16855964118 has 192 divisors, whose sum is σ = 45256273920. Its totient is φ = 4430764800.

The previous prime is 16855964093. The next prime is 16855964137. The reversal of 16855964118 is 81146955861.

16855964118 is a `hidden beast` number, since 1 + 6 + 8 + 5 + 596 + 41 + 1 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7588248 + ... + 7590468.

It is an arithmetic number, because the mean of its divisors is an integer number (235709760).

Almost surely, 2^16855964118 is an apocalyptic number.

16855964118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16855964118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22628136960).

16855964118 is an abundant number, since it is smaller than the sum of its proper divisors (28400309802).

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

16855964118 is a wasteful number, since it uses less digits than its factorization.

16855964118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2360 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The spelling of 16855964118 in words is "sixteen billion, eight hundred fifty-five million, nine hundred sixty-four thousand, one hundred eighteen".