166158177 has 8 divisors (see below), whose sum is σ = 221605440. Its totient is φ = 110741520.

The previous prime is 166158169. The next prime is 166158193. The reversal of 166158177 is 771851661.

It is a happy number.

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

It is not a de Polignac number, because 166158177 - 2³ = 166158169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166158107) 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, 12927 + ... + 22347.

It is an arithmetic number, because the mean of its divisors is an integer number (27700680).

Almost surely, 2^166158177 is an apocalyptic number.

It is an amenable number.

166158177 is a deficient number, since it is larger than the sum of its proper divisors (55447263).

166158177 is an equidigital number, since it uses as much as digits as its factorization.

166158177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15303.

The product of its digits is 70560, while the sum is 42.

The square root of 166158177 is about 12890.2357232131. The cubic root of 166158177 is about 549.7609727190.

The spelling of 166158177 in words is "one hundred sixty-six million, one hundred fifty-eight thousand, one hundred seventy-seven".