13440501605 has 16 divisors (see below), whose sum is σ = 16833446784. Its totient is φ = 10282704960.

The previous prime is 13440501601. The next prime is 13440501611. The reversal of 13440501605 is 50610504431.

It is a happy number.

13440501605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13440501605 - 2² = 13440501601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440501601) 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 15 ways as a sum of consecutive naturals, for example, 706022 + ... + 724808.

It is an arithmetic number, because the mean of its divisors is an integer number (1052090424).

Almost surely, 2^13440501605 is an apocalyptic number.

It is an amenable number.

13440501605 is a deficient number, since it is larger than the sum of its proper divisors (3392945179).

13440501605 is a wasteful number, since it uses less digits than its factorization.

13440501605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25036.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 13440501605 in words is "thirteen billion, four hundred forty million, five hundred one thousand, six hundred five".