13109233556 has 6 divisors (see below), whose sum is σ = 22941158730. Its totient is φ = 6554616776.

The previous prime is 13109233547. The next prime is 13109233583. The reversal of 13109233556 is 65533290131.

13109233556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11175872656 + 1933360900 = 105716^2 + 43970^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1638654191 + ... + 1638654198.

It is an arithmetic number, because the mean of its divisors is an integer number (3823526455).

Almost surely, 2^13109233556 is an apocalyptic number.

It is an amenable number.

13109233556 is a deficient number, since it is larger than the sum of its proper divisors (9831925174).

13109233556 is a wasteful number, since it uses less digits than its factorization.

13109233556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277308393 (or 3277308391 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 38.

The spelling of 13109233556 in words is "thirteen billion, one hundred nine million, two hundred thirty-three thousand, five hundred fifty-six".