166071707 has 8 divisors (see below), whose sum is σ = 176134560. Its totient is φ = 156245760.

The previous prime is 166071701. The next prime is 166071733. The reversal of 166071707 is 707170661.

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 166071707 - 2¹⁰ = 166070683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166071701) 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, 57782 + ... + 60587.

It is an arithmetic number, because the mean of its divisors is an integer number (22016820).

Almost surely, 2^166071707 is an apocalyptic number.

166071707 is a deficient number, since it is larger than the sum of its proper divisors (10062853).

166071707 is a wasteful number, since it uses less digits than its factorization.

166071707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118453.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 166071707 is about 12886.8811975590. The cubic root of 166071707 is about 549.6655895508.

The spelling of 166071707 in words is "one hundred sixty-six million, seventy-one thousand, seven hundred seven".