166313338 has 8 divisors (see below), whose sum is σ = 249642900. Its totient is φ = 83099040.

The previous prime is 166313317. The next prime is 166313339. The reversal of 166313338 is 833313661.

166313338 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 164172969 + 2140369 = 12813^2 + 1463^2 .

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 (166313339) 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, 25113 + ... + 31036.

Almost surely, 2^166313338 is an apocalyptic number.

166313338 is a deficient number, since it is larger than the sum of its proper divisors (83329562).

166313338 is a wasteful number, since it uses less digits than its factorization.

166313338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57632.

The product of its digits is 23328, while the sum is 34.

The square root of 166313338 is about 12896.2528666276. The cubic root of 166313338 is about 549.9320444966.

Adding to 166313338 its reverse (833313661), we get a palindrome (999626999).

The spelling of 166313338 in words is "one hundred sixty-six million, three hundred thirteen thousand, three hundred thirty-eight".