16661130311000 has 128 divisors (see below), whose sum is σ = 44559742930560. Its totient is φ = 5711987520000.

The previous prime is 16661130310999. The next prime is 16661130311017. The reversal of 16661130311000 is 11303116661.

16661130311000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110335550 + ... + 110486450.

It is an arithmetic number, because the mean of its divisors is an integer number (348122991645).

Almost surely, 2^{16661130311000} is an apocalyptic number.

16661130311000 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 16661130311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22279871465280).

16661130311000 is an abundant number, since it is smaller than the sum of its proper divisors (27898612619560).

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

16661130311000 is a wasteful number, since it uses less digits than its factorization.

16661130311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166702 (or 166688 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

Adding to 16661130311000 its reverse (11303116661), we get a palindrome (16672433427661).

The spelling of 16661130311000 in words is "sixteen trillion, six hundred sixty-one billion, one hundred thirty million, three hundred eleven thousand".