13320581055 has 32 divisors (see below), whose sum is σ = 21538013184. Its totient is φ = 7029582336.

The previous prime is 13320581039. The next prime is 13320581083. The reversal of 13320581055 is 55018502331.

It is not a de Polignac number, because 13320581055 - 2⁴ = 13320581039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720487 + ... + 738743.

It is an arithmetic number, because the mean of its divisors is an integer number (673062912).

Almost surely, 2^13320581055 is an apocalyptic number.

13320581055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13320581055 is a deficient number, since it is larger than the sum of its proper divisors (8217432129).

13320581055 is a wasteful number, since it uses less digits than its factorization.

13320581055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18775.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 13320581055 in words is "thirteen billion, three hundred twenty million, five hundred eighty-one thousand, fifty-five".