166344746 has 8 divisors (see below), whose sum is σ = 249626820. Its totient is φ = 83135808.

The previous prime is 166344721. The next prime is 166344751. The reversal of 166344746 is 647443661.

It can be written as a sum of positive squares in 2 ways, for example, as 165765625 + 579121 = 12875^2 + 761^2 .

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 12191 + ... + 21938.

Almost surely, 2^166344746 is an apocalyptic number.

166344746 is a deficient number, since it is larger than the sum of its proper divisors (83282074).

166344746 is a wasteful number, since it uses less digits than its factorization.

166344746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36568.

The product of its digits is 290304, while the sum is 41.

The square root of 166344746 is about 12897.4705272003. The cubic root of 166344746 is about 549.9666602380.

The spelling of 166344746 in words is "one hundred sixty-six million, three hundred forty-four thousand, seven hundred forty-six".