13466416421 has 32 divisors (see below), whose sum is σ = 14769081600. Its totient is φ = 12235691520.

The previous prime is 13466416417. The next prime is 13466416429. The reversal of 13466416421 is 12461466431.

It is a cyclic number.

It is not a de Polignac number, because 13466416421 - 2² = 13466416417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13466416429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12596675 + ... + 12597743.

It is an arithmetic number, because the mean of its divisors is an integer number (461533800).

Almost surely, 2^13466416421 is an apocalyptic number.

It is an amenable number.

13466416421 is a deficient number, since it is larger than the sum of its proper divisors (1302665179).

13466416421 is a wasteful number, since it uses less digits than its factorization.

13466416421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its digits is 82944, while the sum is 38.

The spelling of 13466416421 in words is "thirteen billion, four hundred sixty-six million, four hundred sixteen thousand, four hundred twenty-one".