166134907 has 8 divisors (see below), whose sum is σ = 168108416. Its totient is φ = 164166912.

The previous prime is 166134901. The next prime is 166134937. The reversal of 166134907 is 709431661.

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 166134907 - 2⁷ = 166134779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166134901) 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, 105238 + ... + 106804.

It is an arithmetic number, because the mean of its divisors is an integer number (21013552).

Almost surely, 2^166134907 is an apocalyptic number.

166134907 is a deficient number, since it is larger than the sum of its proper divisors (1973509).

166134907 is a wasteful number, since it uses less digits than its factorization.

166134907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 166134907 is about 12889.3330704114. Note that the first 3 decimals coincide. The cubic root of 166134907 is about 549.7353073454.

The spelling of 166134907 in words is "one hundred sixty-six million, one hundred thirty-four thousand, nine hundred seven".