1666106106108 has 24 divisors (see below), whose sum is σ = 3887602266240. Its totient is φ = 555365651760.

The previous prime is 1666106106043. The next prime is 1666106106109. The reversal of 1666106106108 is 8016016016661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666106106108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666106106109) 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, 3374203 + ... + 3836333.

It is an arithmetic number, because the mean of its divisors is an integer number (161983427760).

Almost surely, 2^{1666106106108} is an apocalyptic number.

It is an amenable number.

1666106106108 is an abundant number, since it is smaller than the sum of its proper divisors (2221496160132).

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

1666106106108 is a wasteful number, since it uses less digits than its factorization.

1666106106108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762577 (or 762575 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 1666106106108 in words is "one trillion, six hundred sixty-six billion, one hundred six million, one hundred six thousand, one hundred eight".