13644665141 has 2 divisors, whose sum is σ = 13644665142. Its totient is φ = 13644665140.

The previous prime is 13644665113. The next prime is 13644665161. The reversal of 13644665141 is 14156644631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13584834916 + 59830225 = 116554^2 + 7735^2 .

It is a cyclic number.

It is not a de Polignac number, because 13644665141 - 2⁶ = 13644665077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13644665101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6822332570 + 6822332571.

It is an arithmetic number, because the mean of its divisors is an integer number (6822332571).

Almost surely, 2^13644665141 is an apocalyptic number.

It is an amenable number.

13644665141 is a deficient number, since it is larger than the sum of its proper divisors (1).

13644665141 is an equidigital number, since it uses as much as digits as its factorization.

13644665141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The spelling of 13644665141 in words is "thirteen billion, six hundred forty-four million, six hundred sixty-five thousand, one hundred forty-one".