13155320330560 has 28 divisors (see below), whose sum is σ = 31326106537908. Its totient is φ = 5262128132096.

The previous prime is 13155320330527. The next prime is 13155320330567. The reversal of 13155320330560 is 6503302355131.

It can be written as a sum of positive squares in 2 ways, for example, as 2729447626816 + 10425872703744 = 1652104^2 + 3228912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155320330567) 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, 20555187697 + ... + 20555188336.

It is an arithmetic number, because the mean of its divisors is an integer number (1118789519211).

Almost surely, 2^{13155320330560} is an apocalyptic number.

13155320330560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155320330560 is an abundant number, since it is smaller than the sum of its proper divisors (18170786207348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13155320330560 is an equidigital number, since it uses as much as digits as its factorization.

13155320330560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41110376050 (or 41110376040 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 37.

Adding to 13155320330560 its reverse (6503302355131), we get a palindrome (19658622685691).

The spelling of 13155320330560 in words is "thirteen trillion, one hundred fifty-five billion, three hundred twenty million, three hundred thirty thousand, five hundred sixty".