6661116616006 has 16 divisors (see below), whose sum is σ = 10477807437600. Its totient is φ = 3171660625728.

The previous prime is 6661116616003. The next prime is 6661116616051. The reversal of 6661116616006 is 6006166111666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661116616003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786617946 + ... + 786626413.

It is an arithmetic number, because the mean of its divisors is an integer number (654862964850).

Almost surely, 2^{6661116616006} is an apocalyptic number.

6661116616006 is a deficient number, since it is larger than the sum of its proper divisors (3816690821594).

6661116616006 is a wasteful number, since it uses less digits than its factorization.

6661116616006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573244463.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 6661116616006 in words is "six trillion, six hundred sixty-one billion, one hundred sixteen million, six hundred sixteen thousand, six".