166426604 has 24 divisors (see below), whose sum is σ = 294079968. Its totient is φ = 82408320.

The previous prime is 166426591. The next prime is 166426607. The reversal of 166426604 is 406624661.

It is not an unprimeable number, because it can be changed into a prime (166426607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330617 + ... + 331119.

It is an arithmetic number, because the mean of its divisors is an integer number (12253332).

Almost surely, 2^166426604 is an apocalyptic number.

It is an amenable number.

166426604 is a deficient number, since it is larger than the sum of its proper divisors (127653364).

166426604 is a wasteful number, since it uses less digits than its factorization.

166426604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 166426604 is about 12900.6435498389. The cubic root of 166426604 is about 550.0568580338.

The spelling of 166426604 in words is "one hundred sixty-six million, four hundred twenty-six thousand, six hundred four".