12192661712 has 40 divisors (see below), whose sum is σ = 29452406592. Its totient is φ = 4750387200.

The previous prime is 12192661669. The next prime is 12192661717. The reversal of 12192661712 is 21716629121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192661717) 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, 4947089 + ... + 4949552.

Almost surely, 2^12192661712 is an apocalyptic number.

It is an amenable number.

12192661712 is an abundant number, since it is smaller than the sum of its proper divisors (17259744880).

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

12192661712 is a wasteful number, since it uses less digits than its factorization.

12192661712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9896667 (or 9896661 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The spelling of 12192661712 in words is "twelve billion, one hundred ninety-two million, six hundred sixty-one thousand, seven hundred twelve".