166516004 has 12 divisors (see below), whose sum is σ = 300803328. Its totient is φ = 80572200.

The previous prime is 166516001. The next prime is 166516027. The reversal of 166516004 is 400615661.

166516004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166516001) 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, 671312 + ... + 671559.

It is an arithmetic number, because the mean of its divisors is an integer number (25066944).

Almost surely, 2^166516004 is an apocalyptic number.

It is an amenable number.

166516004 is a deficient number, since it is larger than the sum of its proper divisors (134287324).

166516004 is a wasteful number, since it uses less digits than its factorization.

166516004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342906 (or 1342904 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 166516004 is about 12904.1080280661. The cubic root of 166516004 is about 550.1553324350.

The spelling of 166516004 in words is "one hundred sixty-six million, five hundred sixteen thousand, four".