13655421541 has 2 divisors, whose sum is σ = 13655421542. Its totient is φ = 13655421540.

The previous prime is 13655421491. The next prime is 13655421589. The reversal of 13655421541 is 14512455631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7034344641 + 6621076900 = 83871^2 + 81370^2 .

It is an emirp because it is prime and its reverse (14512455631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13655421541 - 2¹³ = 13655413349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13655421541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13655421341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6827710770 + 6827710771.

It is an arithmetic number, because the mean of its divisors is an integer number (6827710771).

Almost surely, 2^13655421541 is an apocalyptic number.

It is an amenable number.

13655421541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13655421541 is an equidigital number, since it uses as much as digits as its factorization.

13655421541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The spelling of 13655421541 in words is "thirteen billion, six hundred fifty-five million, four hundred twenty-one thousand, five hundred forty-one".