18552168688871 has 2 divisors, whose sum is σ = 18552168688872. Its totient is φ = 18552168688870.

The previous prime is 18552168688793. The next prime is 18552168688877. The reversal of 18552168688871 is 17888686125581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18552168688871 - 2¹⁴ = 18552168672487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18552168688877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9276084344435 + 9276084344436.

It is an arithmetic number, because the mean of its divisors is an integer number (9276084344436).

Almost surely, 2^{18552168688871} is an apocalyptic number.

18552168688871 is a deficient number, since it is larger than the sum of its proper divisors (1).

18552168688871 is an equidigital number, since it uses as much as digits as its factorization.

18552168688871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 412876800, while the sum is 74.

The spelling of 18552168688871 in words is "eighteen trillion, five hundred fifty-two billion, one hundred sixty-eight million, six hundred eighty-eight thousand, eight hundred seventy-one".