14404431665 has 16 divisors (see below), whose sum is σ = 18617730768. Its totient is φ = 10635534336.

The previous prime is 14404431659. The next prime is 14404431667. The reversal of 14404431665 is 56613440441.

14404431665 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 8 ways, for example, as 865712929 + 13538718736 = 29423^2 + 116356^2 .

It is a cyclic number.

It is not a de Polignac number, because 14404431665 - 2²⁶ = 14337322801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14404431667) 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, 597689 + ... + 621321.

It is an arithmetic number, because the mean of its divisors is an integer number (1163608173).

Almost surely, 2^14404431665 is an apocalyptic number.

It is an amenable number.

14404431665 is a deficient number, since it is larger than the sum of its proper divisors (4213299103).

14404431665 is a wasteful number, since it uses less digits than its factorization.

14404431665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33028.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 14404431665 in words is "fourteen billion, four hundred four million, four hundred thirty-one thousand, six hundred sixty-five".