166853841 has 16 divisors (see below), whose sum is σ = 277367808. Its totient is φ = 86677200.

The previous prime is 166853833. The next prime is 166853851. The reversal of 166853841 is 148358661.

It is not a de Polignac number, because 166853841 - 2³ = 166853833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166853793 and 166853802.

It is not an unprimeable number, because it can be changed into a prime (166853851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 360925 + ... + 361386.

It is an arithmetic number, because the mean of its divisors is an integer number (17335488).

Almost surely, 2^166853841 is an apocalyptic number.

166853841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

166853841 is a deficient number, since it is larger than the sum of its proper divisors (110513967).

166853841 is a wasteful number, since it uses less digits than its factorization.

166853841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722332.

The product of its digits is 138240, while the sum is 42.

The square root of 166853841 is about 12917.1916839536. The cubic root of 166853841 is about 550.5271430874.

The spelling of 166853841 in words is "one hundred sixty-six million, eight hundred fifty-three thousand, eight hundred forty-one".