166652317679 has 2 divisors, whose sum is σ = 166652317680. Its totient is φ = 166652317678.

The previous prime is 166652317673. The next prime is 166652317703. The reversal of 166652317679 is 976713256661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166652317679 - 2³² = 162357350383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166652317673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83326158839 + 83326158840.

It is an arithmetic number, because the mean of its divisors is an integer number (83326158840).

Almost surely, 2^166652317679 is an apocalyptic number.

166652317679 is a deficient number, since it is larger than the sum of its proper divisors (1).

166652317679 is an equidigital number, since it uses as much as digits as its factorization.

166652317679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 59.

The spelling of 166652317679 in words is "one hundred sixty-six billion, six hundred fifty-two million, three hundred seventeen thousand, six hundred seventy-nine".