166706170 has 8 divisors (see below), whose sum is σ = 300071124. Its totient is φ = 66682464.

The previous prime is 166706129. The next prime is 166706173. The reversal of 166706170 is 71607661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152349649 + 14356521 = 12343^2 + 3789^2 .

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

It is not an unprimeable number, because it can be changed into a prime (166706173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8335299 + ... + 8335318.

Almost surely, 2^166706170 is an apocalyptic number.

166706170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166706170 is a deficient number, since it is larger than the sum of its proper divisors (133364954).

166706170 is a wasteful number, since it uses less digits than its factorization.

166706170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16670624.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 166706170 is about 12911.4743542324. The cubic root of 166706170 is about 550.3646837587.

The spelling of 166706170 in words is "one hundred sixty-six million, seven hundred six thousand, one hundred seventy".