16661130305056 has 48 divisors (see below), whose sum is σ = 33421399974144. Its totient is φ = 8173164190464.

The previous prime is 16661130305041. The next prime is 16661130305087. The reversal of 16661130305056 is 65050303116661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75468625 + ... + 75689071.

It is an arithmetic number, because the mean of its divisors is an integer number (696279166128).

Almost surely, 2^{16661130305056} is an apocalyptic number.

16661130305056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16661130305056 is an abundant number, since it is smaller than the sum of its proper divisors (16760269669088).

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

16661130305056 is a wasteful number, since it uses less digits than its factorization.

16661130305056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265073 (or 265065 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 16661130305056 in words is "sixteen trillion, six hundred sixty-one billion, one hundred thirty million, three hundred five thousand, fifty-six".