166730841 has 12 divisors (see below), whose sum is σ = 251304768. Its totient is φ = 106320984.

The previous prime is 166730827. The next prime is 166730857. The reversal of 166730841 is 148037661.

It is not a de Polignac number, because 166730841 - 2⁶ = 166730777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166730796 and 166730805.

It is not an unprimeable number, because it can be changed into a prime (166730801) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 402525 + ... + 402938.

It is an arithmetic number, because the mean of its divisors is an integer number (20942064).

Almost surely, 2^166730841 is an apocalyptic number.

It is an amenable number.

166730841 is a deficient number, since it is larger than the sum of its proper divisors (84573927).

166730841 is a wasteful number, since it uses less digits than its factorization.

166730841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805492 (or 805489 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 166730841 is about 12912.4297093924. The cubic root of 166730841 is about 550.3918320787.

The spelling of 166730841 in words is "one hundred sixty-six million, seven hundred thirty thousand, eight hundred forty-one".