166774041 has 24 divisors (see below), whose sum is σ = 284806080. Its totient is φ = 92012256.

The previous prime is 166774031. The next prime is 166774043. The reversal of 166774041 is 140477661.

It is not a de Polignac number, because 166774041 - 2⁵ = 166774009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166773987 and 166774005.

It is not an unprimeable number, because it can be changed into a prime (166774043) 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 23 ways as a sum of consecutive naturals, for example, 43815 + ... + 47468.

It is an arithmetic number, because the mean of its divisors is an integer number (11866920).

Almost surely, 2^166774041 is an apocalyptic number.

It is an amenable number.

166774041 is a deficient number, since it is larger than the sum of its proper divisors (118032039).

166774041 is a wasteful number, since it uses less digits than its factorization.

166774041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91325 (or 91322 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 166774041 is about 12914.1024078331. The cubic root of 166774041 is about 550.4393635247.

The spelling of 166774041 in words is "one hundred sixty-six million, seven hundred seventy-four thousand, forty-one".