12106665661110 has 32 divisors (see below), whose sum is σ = 29841294821472. Its totient is φ = 3141188928000.

The previous prime is 12106665661093. The next prime is 12106665661133. The reversal of 12106665661110 is 1116656660121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5453451891 + ... + 5453454110.

It is an arithmetic number, because the mean of its divisors is an integer number (932540463171).

Almost surely, 2^{12106665661110} is an apocalyptic number.

12106665661110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12106665661110 is an abundant number, since it is smaller than the sum of its proper divisors (17734629160362).

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

12106665661110 is a wasteful number, since it uses less digits than its factorization.

12106665661110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10906906048.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 12106665661110 in words is "twelve trillion, one hundred six billion, six hundred sixty-five million, six hundred sixty-one thousand, one hundred ten".