18112154922571 has 2 divisors, whose sum is σ = 18112154922572. Its totient is φ = 18112154922570.

The previous prime is 18112154922487. The next prime is 18112154922577. The reversal of 18112154922571 is 17522945121181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18112154922571 - 2⁷ = 18112154922443 is a prime.

It is not a weakly prime, because it can be changed into another prime (18112154922577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056077461285 + 9056077461286.

It is an arithmetic number, because the mean of its divisors is an integer number (9056077461286).

Almost surely, 2^{18112154922571} is an apocalyptic number.

18112154922571 is a deficient number, since it is larger than the sum of its proper divisors (1).

18112154922571 is an equidigital number, since it uses as much as digits as its factorization.

18112154922571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 49.

The spelling of 18112154922571 in words is "eighteen trillion, one hundred twelve billion, one hundred fifty-four million, nine hundred twenty-two thousand, five hundred seventy-one".