16661130545176 has 32 divisors (see below), whose sum is σ = 33644139006240. Its totient is φ = 7689416203008.

The previous prime is 16661130545051. The next prime is 16661130545233. The reversal of 16661130545176 is 67154503116661.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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, 1106796 + ... + 5877691.

It is an arithmetic number, because the mean of its divisors is an integer number (1051379343945).

Almost surely, 2^{16661130545176} is an apocalyptic number.

It is an amenable number.

16661130545176 is an abundant number, since it is smaller than the sum of its proper divisors (16983008461064).

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

16661130545176 is a wasteful number, since it uses less digits than its factorization.

16661130545176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007443 (or 7007439 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 16661130545176 in words is "sixteen trillion, six hundred sixty-one billion, one hundred thirty million, five hundred forty-five thousand, one hundred seventy-six".