166673344527 has 6 divisors (see below), whose sum is σ = 240750386552. Its totient is φ = 111115563012.

The previous prime is 166673344417. The next prime is 166673344603. The reversal of 166673344527 is 725443376661.

It is not a de Polignac number, because 166673344527 - 2¹⁶ = 166673278991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166673344027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9259630243 + ... + 9259630260.

Almost surely, 2^166673344527 is an apocalyptic number.

166673344527 is a deficient number, since it is larger than the sum of its proper divisors (74077042025).

166673344527 is a wasteful number, since it uses less digits than its factorization.

166673344527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18519260509 (or 18519260506 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 54.

The spelling of 166673344527 in words is "one hundred sixty-six billion, six hundred seventy-three million, three hundred forty-four thousand, five hundred twenty-seven".