6660661156116 has 24 divisors (see below), whose sum is σ = 16954410215904. Its totient is φ = 2018382168480.

The previous prime is 6660661156003. The next prime is 6660661156169. The reversal of 6660661156116 is 6116511660666.

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, 25229776975 + ... + 25229777238.

It is an arithmetic number, because the mean of its divisors is an integer number (706433758996).

Almost surely, 2^{6660661156116} is an apocalyptic number.

6660661156116 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6660661156116 is an abundant number, since it is smaller than the sum of its proper divisors (10293749059788).

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

6660661156116 is a wasteful number, since it uses less digits than its factorization.

6660661156116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50459554231 (or 50459554229 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 6660661156116 in words is "six trillion, six hundred sixty billion, six hundred sixty-one million, one hundred fifty-six thousand, one hundred sixteen".