12166615211 has 8 divisors (see below), whose sum is σ = 12808026000. Its totient is φ = 11525310720.

The previous prime is 12166615183. The next prime is 12166615259. The reversal of 12166615211 is 11251666121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12166615211 - 2⁶ = 12166615147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12166615271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 333815 + ... + 368463.

It is an arithmetic number, because the mean of its divisors is an integer number (1601003250).

Almost surely, 2^12166615211 is an apocalyptic number.

12166615211 is a deficient number, since it is larger than the sum of its proper divisors (641410789).

12166615211 is a wasteful number, since it uses less digits than its factorization.

12166615211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53149.

The product of its digits is 4320, while the sum is 32.

The spelling of 12166615211 in words is "twelve billion, one hundred sixty-six million, six hundred fifteen thousand, two hundred eleven".