12345566666668 has 36 divisors (see below), whose sum is σ = 23169845461392. Its totient is φ = 5744822973120.

The previous prime is 12345566666627. The next prime is 12345566666683. The reversal of 12345566666668 is 86666666554321.

It is a super-2 number, since 2×12345566666668² (a number of 27 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 12345566666597 and 12345566666606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48884623 + ... + 49136518.

It is an arithmetic number, because the mean of its divisors is an integer number (643606818372).

Almost surely, 2^{12345566666668} is an apocalyptic number.

It is an amenable number.

12345566666668 is a deficient number, since it is larger than the sum of its proper divisors (10824278794724).

12345566666668 is a wasteful number, since it uses less digits than its factorization.

12345566666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98021242 (or 98021203 counting only the distinct ones).

The product of its digits is 1343692800, while the sum is 70.

The spelling of 12345566666668 in words is "twelve trillion, three hundred forty-five billion, five hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-eight".