166287338 has 8 divisors (see below), whose sum is σ = 285064032. Its totient is φ = 71265996.

The previous prime is 166287313. The next prime is 166287343. The reversal of 166287338 is 833782661.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5938820 + ... + 5938847.

It is an arithmetic number, because the mean of its divisors is an integer number (35633004).

Almost surely, 2^166287338 is an apocalyptic number.

166287338 is a deficient number, since it is larger than the sum of its proper divisors (118776694).

166287338 is a wasteful number, since it uses less digits than its factorization.

166287338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877676.

The product of its digits is 290304, while the sum is 44.

The square root of 166287338 is about 12895.2447824770. The cubic root of 166287338 is about 549.9033857843.

The spelling of 166287338 in words is "one hundred sixty-six million, two hundred eighty-seven thousand, three hundred thirty-eight".