13040205352 has 16 divisors (see below), whose sum is σ = 24452736660. Its totient is φ = 6519475584.

The previous prime is 13040205341. The next prime is 13040205359. The reversal of 13040205352 is 25350204031.

It can be written as a sum of positive squares in 2 ways, for example, as 12806543556 + 233661796 = 113166^2 + 15286^2 .

It is not an unprimeable number, because it can be changed into a prime (13040205359) 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, 16788 + ... + 162364.

Almost surely, 2^13040205352 is an apocalyptic number.

It is an amenable number.

13040205352 is a deficient number, since it is larger than the sum of its proper divisors (11412531308).

13040205352 is a wasteful number, since it uses less digits than its factorization.

13040205352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156780 (or 156776 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 13040205352 its reverse (25350204031), we get a palindrome (38390409383).

The spelling of 13040205352 in words is "thirteen billion, forty million, two hundred five thousand, three hundred fifty-two".