6661566500110 has 48 divisors (see below), whose sum is σ = 12344561718768. Its totient is φ = 2588182085120.

The previous prime is 6661566500089. The next prime is 6661566500119. The reversal of 6661566500110 is 110056651666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661566500119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2942994 + ... + 4688746.

It is an arithmetic number, because the mean of its divisors is an integer number (257178369141).

Almost surely, 2^{6661566500110} is an apocalyptic number.

6661566500110 is a deficient number, since it is larger than the sum of its proper divisors (5682995218658).

6661566500110 is a wasteful number, since it uses less digits than its factorization.

6661566500110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746069 (or 1746028 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 6661566500110 in words is "six trillion, six hundred sixty-one billion, five hundred sixty-six million, five hundred thousand, one hundred ten".