166012604 has 6 divisors (see below), whose sum is σ = 290522064. Its totient is φ = 83006300.

The previous prime is 166012579. The next prime is 166012663. The reversal of 166012604 is 406210661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20751572 + ... + 20751579.

It is an arithmetic number, because the mean of its divisors is an integer number (48420344).

Almost surely, 2^166012604 is an apocalyptic number.

It is an amenable number.

166012604 is a deficient number, since it is larger than the sum of its proper divisors (124509460).

166012604 is a wasteful number, since it uses less digits than its factorization.

166012604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41503155 (or 41503153 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 166012604 is about 12884.5878475021. The cubic root of 166012604 is about 549.6003752716.

The spelling of 166012604 in words is "one hundred sixty-six million, twelve thousand, six hundred four".