13365558542 has 32 divisors (see below), whose sum is σ = 24776368128. Its totient is φ = 5276439936.

The previous prime is 13365558473. The next prime is 13365558551. The reversal of 13365558542 is 24585556331.

It is a happy number.

13365558542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

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 in 15 ways as a sum of consecutive naturals, for example, 586238 + ... + 608609.

It is an arithmetic number, because the mean of its divisors is an integer number (774261504).

Almost surely, 2^13365558542 is an apocalyptic number.

13365558542 is a deficient number, since it is larger than the sum of its proper divisors (11410809586).

13365558542 is a wasteful number, since it uses less digits than its factorization.

13365558542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194920.

The product of its digits is 2160000, while the sum is 47.

The spelling of 13365558542 in words is "thirteen billion, three hundred sixty-five million, five hundred fifty-eight thousand, five hundred forty-two".