166103562571 has 2 divisors, whose sum is σ = 166103562572. Its totient is φ = 166103562570.

The previous prime is 166103562563. The next prime is 166103562589. The reversal of 166103562571 is 175265301661.

166103562571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166103562571 - 2³ = 166103562563 is a prime.

It is a super-2 number, since 2×166103562571² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166103562071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83051781285 + 83051781286.

It is an arithmetic number, because the mean of its divisors is an integer number (83051781286).

Almost surely, 2^166103562571 is an apocalyptic number.

166103562571 is a deficient number, since it is larger than the sum of its proper divisors (1).

166103562571 is an equidigital number, since it uses as much as digits as its factorization.

166103562571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 166103562571 in words is "one hundred sixty-six billion, one hundred three million, five hundred sixty-two thousand, five hundred seventy-one".