12366466321 has 6 divisors (see below), whose sum is σ = 13592892866. Its totient is φ = 11242242000.

The previous prime is 12366466319. The next prime is 12366466367.

It is a happy number.

12366466321 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 9158490000 + 3207976321 = 95700^2 + 56639^2 .

It is not a de Polignac number, because 12366466321 - 2¹ = 12366466319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12366469321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51100980 + ... + 51101221.

Almost surely, 2^12366466321 is an apocalyptic number.

12366466321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12366466321 is a deficient number, since it is larger than the sum of its proper divisors (1226426545).

12366466321 is a wasteful number, since it uses less digits than its factorization.

12366466321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102202223 (or 102202212 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The spelling of 12366466321 in words is "twelve billion, three hundred sixty-six million, four hundred sixty-six thousand, three hundred twenty-one".