12466466421 has 16 divisors (see below), whose sum is σ = 16887038400. Its totient is φ = 8178686208.

The previous prime is 12466466413. The next prime is 12466466429.

12466466421 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (12466466413) and next prime (12466466429).

It is not a de Polignac number, because 12466466421 - 2³ = 12466466413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12466466429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172075 + ... + 233543.

It is an arithmetic number, because the mean of its divisors is an integer number (1055439900).

Almost surely, 2^12466466421 is an apocalyptic number.

It is an amenable number.

12466466421 is a deficient number, since it is larger than the sum of its proper divisors (4420571979).

12466466421 is a wasteful number, since it uses less digits than its factorization.

12466466421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62548.

The product of its digits is 331776, while the sum is 42.

The spelling of 12466466421 in words is "twelve billion, four hundred sixty-six million, four hundred sixty-six thousand, four hundred twenty-one".