166941867 has 8 divisors (see below), whose sum is σ = 227765824. Its totient is φ = 108706248.

The previous prime is 166941833. The next prime is 166941871. The reversal of 166941867 is 768149661.

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 166941867 - 2²³ = 158553259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166941877) 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, 646933 + ... + 647190.

It is an arithmetic number, because the mean of its divisors is an integer number (28470728).

Almost surely, 2^166941867 is an apocalyptic number.

166941867 is a deficient number, since it is larger than the sum of its proper divisors (60823957).

166941867 is a wasteful number, since it uses less digits than its factorization.

166941867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294169.

The product of its digits is 435456, while the sum is 48.

The square root of 166941867 is about 12920.5985542466. The cubic root of 166941867 is about 550.6239387469.

The spelling of 166941867 in words is "one hundred sixty-six million, nine hundred forty-one thousand, eight hundred sixty-seven".