166604002 has 16 divisors (see below), whose sum is σ = 255985920. Its totient is φ = 81286048.

The previous prime is 166603981. The next prime is 166604003. The reversal of 166604002 is 200406661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (166604003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31278 + ... + 36214.

It is an arithmetic number, because the mean of its divisors is an integer number (15999120).

Almost surely, 2^166604002 is an apocalyptic number.

166604002 is a deficient number, since it is larger than the sum of its proper divisors (89381918).

166604002 is a wasteful number, since it uses less digits than its factorization.

166604002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 166604002 is about 12907.5172670812. The cubic root of 166604002 is about 550.2522281130.

The spelling of 166604002 in words is "one hundred sixty-six million, six hundred four thousand, two".