13660440134 has 16 divisors (see below), whose sum is σ = 23668356816. Its totient is φ = 5844038400.

The previous prime is 13660440119. The next prime is 13660440137. The reversal of 13660440134 is 43104406631.

13660440134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13660440134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660440137) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18262247 + ... + 18262994.

It is an arithmetic number, because the mean of its divisors is an integer number (1479272301).

Almost surely, 2^13660440134 is an apocalyptic number.

13660440134 is a deficient number, since it is larger than the sum of its proper divisors (10007916682).

13660440134 is a wasteful number, since it uses less digits than its factorization.

13660440134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36525271.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 13660440134 its reverse (43104406631), we get a palindrome (56764846765).

The spelling of 13660440134 in words is "thirteen billion, six hundred sixty million, four hundred forty thousand, one hundred thirty-four".