13146420943606 has 4 divisors (see below), whose sum is σ = 19719631415412. Its totient is φ = 6573210471802.

The previous prime is 13146420943603. The next prime is 13146420943609. The reversal of 13146420943606 is 60634902464131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13146420943603) and next prime (13146420943609).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13146420943606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146420943603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286605235900 + ... + 3286605235903.

It is an arithmetic number, because the mean of its divisors is an integer number (4929907853853).

Almost surely, 2^{13146420943606} is an apocalyptic number.

13146420943606 is a deficient number, since it is larger than the sum of its proper divisors (6573210471806).

13146420943606 is an equidigital number, since it uses as much as digits as its factorization.

13146420943606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573210471805.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 13146420943606 in words is "thirteen trillion, one hundred forty-six billion, four hundred twenty million, nine hundred forty-three thousand, six hundred six".