166038146 has 8 divisors (see below), whose sum is σ = 249771900. Its totient is φ = 82780848.

The previous prime is 166038143. The next prime is 166038209. The reversal of 166038146 is 641830661.

It can be written as a sum of positive squares in 2 ways, for example, as 137147521 + 28890625 = 11711^2 + 5375^2 .

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 (166038143) 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, 118241 + ... + 119636.

Almost surely, 2^166038146 is an apocalyptic number.

166038146 is a deficient number, since it is larger than the sum of its proper divisors (83733754).

166038146 is a wasteful number, since it uses less digits than its factorization.

166038146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238228.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 166038146 is about 12885.5789935881. The cubic root of 166038146 is about 549.6285602257.

The spelling of 166038146 in words is "one hundred sixty-six million, thirty-eight thousand, one hundred forty-six".