664414196 has 48 divisors (see below), whose sum is σ = 1291917312. Its totient is φ = 297561600.

The previous prime is 664414193. The next prime is 664414241. The reversal of 664414196 is 691414466.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664414193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126005 + ... + 131171.

It is an arithmetic number, because the mean of its divisors is an integer number (26914944).

Almost surely, 2^664414196 is an apocalyptic number.

It is an amenable number.

664414196 is a deficient number, since it is larger than the sum of its proper divisors (627503116).

664414196 is a wasteful number, since it uses less digits than its factorization.

664414196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280 (or 5278 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 664414196 is about 25776.2331615774. The cubic root of 664414196 is about 872.5954974111.

The spelling of 664414196 in words is "six hundred sixty-four million, four hundred fourteen thousand, one hundred ninety-six".