2108542422168 has 320 divisors, whose sum is σ = 7343720112960. Its totient is φ = 550364626944.

The previous prime is 2108542422149. The next prime is 2108542422193. The reversal of 2108542422168 is 8612242458012.

It is a happy number.

2108542422168 is a `hidden beast` number, since 2 + 1 + 0 + 8 + 5 + 424 + 2 + 216 + 8 = 666.

It is a super-2 number, since 2×2108542422168² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5535580 + ... + 5904212.

It is an arithmetic number, because the mean of its divisors is an integer number (22949125353).

Almost surely, 2^{2108542422168} is an apocalyptic number.

2108542422168 is a gapful number since it is divisible by the number (28) 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 2108542422168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3671860056480).

2108542422168 is an abundant number, since it is smaller than the sum of its proper divisors (5235177690792).

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

2108542422168 is a wasteful number, since it uses less digits than its factorization.

2108542422168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368768 (or 368755 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 2108542422168 in words is "two trillion, one hundred eight billion, five hundred forty-two million, four hundred twenty-two thousand, one hundred sixty-eight".