13443445314146 has 4 divisors (see below), whose sum is σ = 20165167971222. Its totient is φ = 6721722657072.

The previous prime is 13443445314137. The next prime is 13443445314157. The reversal of 13443445314146 is 64141354434431.

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

It can be written as a sum of positive squares in only one way, i.e., 8687726775025 + 4755718539121 = 2947495^2 + 2180761^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13443445314146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360861328535 + ... + 3360861328538.

Almost surely, 2^{13443445314146} is an apocalyptic number.

13443445314146 is a deficient number, since it is larger than the sum of its proper divisors (6721722657076).

13443445314146 is an equidigital number, since it uses as much as digits as its factorization.

13443445314146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721722657075.

The product of its digits is 3317760, while the sum is 47.

Adding to 13443445314146 its reverse (64141354434431), we get a palindrome (77584799748577).

The spelling of 13443445314146 in words is "thirteen trillion, four hundred forty-three billion, four hundred forty-five million, three hundred fourteen thousand, one hundred forty-six".