12117166012 has 24 divisors (see below), whose sum is σ = 24425160704. Its totient is φ = 5152179312.

The previous prime is 12117165937. The next prime is 12117166051. The reversal of 12117166012 is 21066171121.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 1700208 + ... + 1707319.

Almost surely, 2^12117166012 is an apocalyptic number.

It is an amenable number.

12117166012 is an abundant number, since it is smaller than the sum of its proper divisors (12307994692).

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

12117166012 is a wasteful number, since it uses less digits than its factorization.

12117166012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407665 (or 3407663 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 12117166012 in words is "twelve billion, one hundred seventeen million, one hundred sixty-six thousand, twelve".