166904041 has 4 divisors (see below), whose sum is σ = 167302800. Its totient is φ = 166505284.

The previous prime is 166904029. The next prime is 166904063. The reversal of 166904041 is 140409661.

166904041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166904041 - 2¹³ = 166895849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166903994 and 166904012.

It is not an unprimeable number, because it can be changed into a prime (166904021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198751 + ... + 199588.

It is an arithmetic number, because the mean of its divisors is an integer number (41825700).

Almost surely, 2^166904041 is an apocalyptic number.

It is an amenable number.

166904041 is a deficient number, since it is larger than the sum of its proper divisors (398759).

166904041 is an equidigital number, since it uses as much as digits as its factorization.

166904041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398758.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 166904041 is about 12919.1346846451. The cubic root of 166904041 is about 550.5823484721.

The spelling of 166904041 in words is "one hundred sixty-six million, nine hundred four thousand, forty-one".