166008938 has 8 divisors (see below), whose sum is σ = 253095780. Its totient is φ = 81643680.

The previous prime is 166008923. The next prime is 166008943. The reversal of 166008938 is 839800661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 165971689 + 37249 = 12883^2 + 193^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 166008895 and 166008904.

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, 680243 + ... + 680486.

Almost surely, 2^166008938 is an apocalyptic number.

166008938 is a deficient number, since it is larger than the sum of its proper divisors (87086842).

166008938 is a wasteful number, since it uses less digits than its factorization.

166008938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360792.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 166008938 is about 12884.4455837261. The cubic root of 166008938 is about 549.5963296956.

The spelling of 166008938 in words is "one hundred sixty-six million, eight thousand, nine hundred thirty-eight".