664610196 has 24 divisors (see below), whose sum is σ = 1632376480. Its totient is φ = 209876832.

The previous prime is 664610183. The next prime is 664610201. The reversal of 664610196 is 691016466.

664610196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457251 + ... + 1457706.

Almost surely, 2^664610196 is an apocalyptic number.

It is an amenable number.

664610196 is an abundant number, since it is smaller than the sum of its proper divisors (967766284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664610196 is a wasteful number, since it uses less digits than its factorization.

664610196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914983 (or 2914981 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 664610196 is about 25780.0348331805. The cubic root of 664610196 is about 872.6812932413.

The spelling of 664610196 in words is "six hundred sixty-four million, six hundred ten thousand, one hundred ninety-six".