13220300552 has 16 divisors (see below), whose sum is σ = 24945951660. Its totient is φ = 6568046784.

The previous prime is 13220300539. The next prime is 13220300581. The reversal of 13220300552 is 25500302231.

It can be written as a sum of positive squares in 2 ways, for example, as 12540864196 + 679436356 = 111986^2 + 26066^2 .

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, 5261603 + ... + 5264114.

Almost surely, 2^13220300552 is an apocalyptic number.

It is an amenable number.

13220300552 is a deficient number, since it is larger than the sum of its proper divisors (11725651108).

13220300552 is a wasteful number, since it uses less digits than its factorization.

13220300552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525880 (or 10525876 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 13220300552 its reverse (25500302231), we get a palindrome (38720602783).

The spelling of 13220300552 in words is "thirteen billion, two hundred twenty million, three hundred thousand, five hundred fifty-two".