166341705 has 16 divisors (see below), whose sum is σ = 266328384. Its totient is φ = 88655040.

The previous prime is 166341683. The next prime is 166341761. The reversal of 166341705 is 507143661.

166341705 = 4074² + 4075² + ... + 4083².

It is not a de Polignac number, because 166341705 - 2⁷ = 166341577 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27015 + ... + 32595.

It is an arithmetic number, because the mean of its divisors is an integer number (16645524).

Almost surely, 2^166341705 is an apocalyptic number.

166341705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166341705 is a deficient number, since it is larger than the sum of its proper divisors (99986679).

166341705 is a wasteful number, since it uses less digits than its factorization.

166341705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 166341705 is about 12897.3526353279. The cubic root of 166341705 is about 549.9633088471.

The spelling of 166341705 in words is "one hundred sixty-six million, three hundred forty-one thousand, seven hundred five".