16656118108740 has 288 divisors, whose sum is σ = 58282245245952. Its totient is φ = 3812285952000.

The previous prime is 16656118108733. The next prime is 16656118108823. The reversal of 16656118108740 is 4780181165661.

16656118108740 is a `hidden beast` number, since 1 + 6 + 6 + 5 + 611 + 8 + 10 + 8 + 7 + 4 + 0 = 666.

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, 792697 + ... + 5825856.

It is an arithmetic number, because the mean of its divisors is an integer number (202368907104).

Almost surely, 2^{16656118108740} is an apocalyptic number.

16656118108740 is a gapful number since it is divisible by the number (10) 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 16656118108740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29141122622976).

16656118108740 is an abundant number, since it is smaller than the sum of its proper divisors (41626127137212).

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

16656118108740 is a wasteful number, since it uses less digits than its factorization.

16656118108740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618651 (or 6618646 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 16656118108740 in words is "sixteen trillion, six hundred fifty-six billion, one hundred eighteen million, one hundred eight thousand, seven hundred forty".