13106660421 has 8 divisors (see below), whose sum is σ = 17721681984. Its totient is φ = 8614706240.

The previous prime is 13106660353. The next prime is 13106660429. The reversal of 13106660421 is 12406660131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13106660421 - 2¹⁷ = 13106529349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13106660429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30766596 + ... + 30767021.

It is an arithmetic number, because the mean of its divisors is an integer number (2215210248).

Almost surely, 2^13106660421 is an apocalyptic number.

It is an amenable number.

13106660421 is a deficient number, since it is larger than the sum of its proper divisors (4615021563).

13106660421 is an equidigital number, since it uses as much as digits as its factorization.

13106660421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61533691.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 13106660421 in words is "thirteen billion, one hundred six million, six hundred sixty thousand, four hundred twenty-one".