166074871117 has 8 divisors (see below), whose sum is σ = 171438607872. Its totient is φ = 160711539600.

The previous prime is 166074871099. The next prime is 166074871153. The reversal of 166074871117 is 711178470661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166074871117 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 (166074877117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883743 + ... + 1055059.

It is an arithmetic number, because the mean of its divisors is an integer number (21429825984).

Almost surely, 2^166074871117 is an apocalyptic number.

It is an amenable number.

166074871117 is a deficient number, since it is larger than the sum of its proper divisors (5363736755).

166074871117 is a wasteful number, since it uses less digits than its factorization.

166074871117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202619.

The product of its (nonzero) digits is 395136, while the sum is 49.

The spelling of 166074871117 in words is "one hundred sixty-six billion, seventy-four million, eight hundred seventy-one thousand, one hundred seventeen".