13464166421 has 4 divisors (see below), whose sum is σ = 13466105952. Its totient is φ = 13462226892.

The previous prime is 13464166409. The next prime is 13464166439. The reversal of 13464166421 is 12466146431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12466146431 = 8647 ⋅1441673.

It is a cyclic number.

It is not a de Polignac number, because 13464166421 - 2¹⁰ = 13464165397 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 (13464160421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959315 + ... + 973248.

It is an arithmetic number, because the mean of its divisors is an integer number (3366526488).

Almost surely, 2^13464166421 is an apocalyptic number.

It is an amenable number.

13464166421 is a deficient number, since it is larger than the sum of its proper divisors (1939531).

13464166421 is an equidigital number, since it uses as much as digits as its factorization.

13464166421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939530.

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

The spelling of 13464166421 in words is "thirteen billion, four hundred sixty-four million, one hundred sixty-six thousand, four hundred twenty-one".