12345218329668 has 24 divisors (see below), whose sum is σ = 32920582212672. Its totient is φ = 3527205237024.

The previous prime is 12345218329601. The next prime is 12345218329669. The reversal of 12345218329668 is 86692381254321.

It is not an unprimeable number, because it can be changed into a prime (12345218329669) 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, 73483442355 + ... + 73483442522.

It is an arithmetic number, because the mean of its divisors is an integer number (1371690925528).

Almost surely, 2^{12345218329668} is an apocalyptic number.

It is an amenable number.

12345218329668 is an abundant number, since it is smaller than the sum of its proper divisors (20575363883004).

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

12345218329668 is a wasteful number, since it uses less digits than its factorization.

12345218329668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146966884891 (or 146966884889 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The spelling of 12345218329668 in words is "twelve trillion, three hundred forty-five billion, two hundred eighteen million, three hundred twenty-nine thousand, six hundred sixty-eight".