13163336427 has 4 divisors (see below), whose sum is σ = 17551115240. Its totient is φ = 8775557616.

The previous prime is 13163336383. The next prime is 13163336443. The reversal of 13163336427 is 72463336131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72463336131 = 3 ⋅24154445377.

It is not a de Polignac number, because 13163336427 - 2⁷ = 13163336299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13163336447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193889402 + ... + 2193889407.

It is an arithmetic number, because the mean of its divisors is an integer number (4387778810).

Almost surely, 2^13163336427 is an apocalyptic number.

13163336427 is a deficient number, since it is larger than the sum of its proper divisors (4387778813).

13163336427 is an equidigital number, since it uses as much as digits as its factorization.

13163336427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4387778812.

The product of its digits is 163296, while the sum is 39.

The spelling of 13163336427 in words is "thirteen billion, one hundred sixty-three million, three hundred thirty-six thousand, four hundred twenty-seven".