166795052071 has 8 divisors (see below), whose sum is σ = 169092625520. Its totient is φ = 164497822272.

The previous prime is 166795051987. The next prime is 166795052111. The reversal of 166795052071 is 170250597661.

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

It is a cyclic number.

It is not a de Polignac number, because 166795052071 - 2⁹ = 166795051559 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 (166795652071) 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 7 ways as a sum of consecutive naturals, for example, 982300 + ... + 1139518.

It is an arithmetic number, because the mean of its divisors is an integer number (21136578190).

Almost surely, 2^166795052071 is an apocalyptic number.

166795052071 is a deficient number, since it is larger than the sum of its proper divisors (2297573449).

166795052071 is a wasteful number, since it uses less digits than its factorization.

166795052071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171825.

The product of its (nonzero) digits is 793800, while the sum is 49.

The spelling of 166795052071 in words is "one hundred sixty-six billion, seven hundred ninety-five million, fifty-two thousand, seventy-one".