13666624141 has 2 divisors, whose sum is σ = 13666624142. Its totient is φ = 13666624140.

The previous prime is 13666624121. The next prime is 13666624151. The reversal of 13666624141 is 14142666631.

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., 13185699241 + 480924900 = 114829^2 + 21930^2 .

It is a cyclic number.

It is not a de Polignac number, because 13666624141 - 2⁵ = 13666624109 is a prime.

It is a super-2 number, since 2×13666624141² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13666624094 and 13666624103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13666624121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6833312070 + 6833312071.

It is an arithmetic number, because the mean of its divisors is an integer number (6833312071).

Almost surely, 2^13666624141 is an apocalyptic number.

It is an amenable number.

13666624141 is a deficient number, since it is larger than the sum of its proper divisors (1).

13666624141 is an equidigital number, since it uses as much as digits as its factorization.

13666624141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The spelling of 13666624141 in words is "thirteen billion, six hundred sixty-six million, six hundred twenty-four thousand, one hundred forty-one".