166340026 has 8 divisors (see below), whose sum is σ = 249882804. Its totient is φ = 83045760.

The previous prime is 166340011. The next prime is 166340077. The reversal of 166340026 is 620043661.

It can be written as a sum of positive squares in 2 ways, for example, as 165096801 + 1243225 = 12849^2 + 1115^2 .

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 = 166339976 and 166340003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60445 + ... + 63136.

Almost surely, 2^166340026 is an apocalyptic number.

166340026 is a deficient number, since it is larger than the sum of its proper divisors (83542778).

166340026 is a wasteful number, since it uses less digits than its factorization.

166340026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124256.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 166340026 is about 12897.2875442862. The cubic root of 166340026 is about 549.9614584563.

Adding to 166340026 its reverse (620043661), we get a palindrome (786383687).

The spelling of 166340026 in words is "one hundred sixty-six million, three hundred forty thousand, twenty-six".