166603116575411 has 2 divisors, whose sum is σ = 166603116575412. Its totient is φ = 166603116575410.

The previous prime is 166603116575393. The next prime is 166603116575443. The reversal of 166603116575411 is 114575611306661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166603116575411 - 2⁴⁶ = 96234372397747 is a prime.

It is not a weakly prime, because it can be changed into another prime (166603116575491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83301558287705 + 83301558287706.

It is an arithmetic number, because the mean of its divisors is an integer number (83301558287706).

Almost surely, 2^{166603116575411} is an apocalyptic number.

166603116575411 is a deficient number, since it is larger than the sum of its proper divisors (1).

166603116575411 is an equidigital number, since it uses as much as digits as its factorization.

166603116575411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 166603116575411 in words is "one hundred sixty-six trillion, six hundred three billion, one hundred sixteen million, five hundred seventy-five thousand, four hundred eleven".