12180664863 has 12 divisors (see below), whose sum is σ = 18161851968. Its totient is φ = 7858493280.

The previous prime is 12180664861. The next prime is 12180664897. The reversal of 12180664863 is 36846608121.

It is not a de Polignac number, because 12180664863 - 2¹ = 12180664861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180664861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21828870 + ... + 21829427.

It is an arithmetic number, because the mean of its divisors is an integer number (1513487664).

Almost surely, 2^12180664863 is an apocalyptic number.

12180664863 is a deficient number, since it is larger than the sum of its proper divisors (5981187105).

12180664863 is a wasteful number, since it uses less digits than its factorization.

12180664863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43658334 (or 43658331 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 12180664863 in words is "twelve billion, one hundred eighty million, six hundred sixty-four thousand, eight hundred sixty-three".