13136216452 has 12 divisors (see below), whose sum is σ = 22989963276. Its totient is φ = 6567655520.

The previous prime is 13136216441. The next prime is 13136216477. The reversal of 13136216452 is 25461263131.

It can be written as a sum of positive squares in 2 ways, for example, as 2706496576 + 10429719876 = 52024^2 + 102126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43063 + ... + 167710.

It is an arithmetic number, because the mean of its divisors is an integer number (1915830273).

Almost surely, 2^13136216452 is an apocalyptic number.

It is an amenable number.

13136216452 is a deficient number, since it is larger than the sum of its proper divisors (9853746824).

13136216452 is a wasteful number, since it uses less digits than its factorization.

13136216452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226358 (or 226356 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

Adding to 13136216452 its reverse (25461263131), we get a palindrome (38597479583).

The spelling of 13136216452 in words is "thirteen billion, one hundred thirty-six million, two hundred sixteen thousand, four hundred fifty-two".