13142405044465 has 16 divisors (see below), whose sum is σ = 15796851884496. Its totient is φ = 10496618496000.

The previous prime is 13142405044463. The next prime is 13142405044511. The reversal of 13142405044465 is 56444050424131.

It can be written as a sum of positive squares in 8 ways, for example, as 2029009371489 + 11113395672976 = 1424433^2 + 3333676^2 .

It is not a de Polignac number, because 13142405044465 - 2¹ = 13142405044463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13142405044463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20892945 + ... + 21512785.

It is an arithmetic number, because the mean of its divisors is an integer number (987303242781).

Almost surely, 2^{13142405044465} is an apocalyptic number.

It is an amenable number.

13142405044465 is a deficient number, since it is larger than the sum of its proper divisors (2654446840031).

13142405044465 is an equidigital number, since it uses as much as digits as its factorization.

13142405044465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626820.

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 13142405044465 its reverse (56444050424131), we get a palindrome (69586455468596).

The spelling of 13142405044465 in words is "thirteen trillion, one hundred forty-two billion, four hundred five million, forty-four thousand, four hundred sixty-five".