13298561855 has 4 divisors (see below), whose sum is σ = 15958274232. Its totient is φ = 10638849480.

The previous prime is 13298561851. The next prime is 13298561879. The reversal of 13298561855 is 55816589231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55816589231 = 13 ⋅4293583787.

It is not a de Polignac number, because 13298561855 - 2² = 13298561851 is a prime.

It is a super-2 number, since 2×13298561855² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13298561797 and 13298561806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13298561851) 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, 1329856181 + ... + 1329856190.

It is an arithmetic number, because the mean of its divisors is an integer number (3989568558).

Almost surely, 2^13298561855 is an apocalyptic number.

13298561855 is a deficient number, since it is larger than the sum of its proper divisors (2659712377).

13298561855 is an equidigital number, since it uses as much as digits as its factorization.

13298561855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659712376.

The product of its digits is 2592000, while the sum is 53.

The spelling of 13298561855 in words is "thirteen billion, two hundred ninety-eight million, five hundred sixty-one thousand, eight hundred fifty-five".