166352364623 has 2 divisors, whose sum is σ = 166352364624. Its totient is φ = 166352364622.

The previous prime is 166352364617. The next prime is 166352364637. The reversal of 166352364623 is 326463253661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166352364623 - 2¹⁸ = 166352102479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166352364613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83176182311 + 83176182312.

It is an arithmetic number, because the mean of its divisors is an integer number (83176182312).

Almost surely, 2^166352364623 is an apocalyptic number.

166352364623 is a deficient number, since it is larger than the sum of its proper divisors (1).

166352364623 is an equidigital number, since it uses as much as digits as its factorization.

166352364623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 47.

The spelling of 166352364623 in words is "one hundred sixty-six billion, three hundred fifty-two million, three hundred sixty-four thousand, six hundred twenty-three".