166057071 has 8 divisors (see below), whose sum is σ = 234433584. Its totient is φ = 104192640.

The previous prime is 166057061. The next prime is 166057097. The reversal of 166057071 is 170750661.

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

It is not a de Polignac number, because 166057071 - 2⁵ = 166057039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166057051) 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, 1627960 + ... + 1628061.

It is an arithmetic number, because the mean of its divisors is an integer number (29304198).

Almost surely, 2^166057071 is an apocalyptic number.

166057071 is a deficient number, since it is larger than the sum of its proper divisors (68376513).

166057071 is a wasteful number, since it uses less digits than its factorization.

166057071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256041.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 166057071 is about 12886.3133207291. The cubic root of 166057071 is about 549.6494416227.

The spelling of 166057071 in words is "one hundred sixty-six million, fifty-seven thousand, seventy-one".