11554166514487 has 2 divisors, whose sum is σ = 11554166514488. Its totient is φ = 11554166514486.

The previous prime is 11554166514437. The next prime is 11554166514497. The reversal of 11554166514487 is 78441566145511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11554166514487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11554166514437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777083257243 + 5777083257244.

It is an arithmetic number, because the mean of its divisors is an integer number (5777083257244).

Almost surely, 2^{11554166514487} is an apocalyptic number.

11554166514487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11554166514487 is an equidigital number, since it uses as much as digits as its factorization.

11554166514487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128000, while the sum is 58.

The spelling of 11554166514487 in words is "eleven trillion, five hundred fifty-four billion, one hundred sixty-six million, five hundred fourteen thousand, four hundred eighty-seven".