16661052116750 has 32 divisors (see below), whose sum is σ = 31189756721760. Its totient is φ = 6664363761600.

The previous prime is 16661052116749. The next prime is 16661052116801. The reversal of 16661052116750 is 5761125016661.

It is a junction number, because it is equal to n+sod(n) for n = 16661052116695 and 16661052116704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40714661 + ... + 41121839.

It is an arithmetic number, because the mean of its divisors is an integer number (974679897555).

Almost surely, 2^{16661052116750} is an apocalyptic number.

16661052116750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16661052116750 is a deficient number, since it is larger than the sum of its proper divisors (14528704605010).

16661052116750 is a wasteful number, since it uses less digits than its factorization.

16661052116750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570869 (or 570859 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 16661052116750 in words is "sixteen trillion, six hundred sixty-one billion, fifty-two million, one hundred sixteen thousand, seven hundred fifty".