13554724546661 has 2 divisors, whose sum is σ = 13554724546662. Its totient is φ = 13554724546660.

The previous prime is 13554724546609. The next prime is 13554724546681. The reversal of 13554724546661 is 16664542745531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12532945236100 + 1021779310561 = 3540190^2 + 1010831^2 .

It is an emirp because it is prime and its reverse (16664542745531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13554724546661 - 2²² = 13554720352357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13554724546661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13554724546681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777362273330 + 6777362273331.

It is an arithmetic number, because the mean of its divisors is an integer number (6777362273331).

Almost surely, 2^{13554724546661} is an apocalyptic number.

It is an amenable number.

13554724546661 is a deficient number, since it is larger than the sum of its proper divisors (1).

13554724546661 is an equidigital number, since it uses as much as digits as its factorization.

13554724546661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576000, while the sum is 59.

The spelling of 13554724546661 in words is "thirteen trillion, five hundred fifty-four billion, seven hundred twenty-four million, five hundred forty-six thousand, six hundred sixty-one".