664416414 has 24 divisors (see below), whose sum is σ = 1440045360. Its totient is φ = 221398848.

The previous prime is 664416409. The next prime is 664416443. The reversal of 664416414 is 414614466.

664416414 is a `hidden beast` number, since 6 + 6 + 4 + 4 + 1 + 641 + 4 = 666.

664416414 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 11 ways as a sum of consecutive naturals, for example, 95254 + ... + 101990.

It is an arithmetic number, because the mean of its divisors is an integer number (60001890).

Almost surely, 2^664416414 is an apocalyptic number.

664416414 is an abundant number, since it is smaller than the sum of its proper divisors (775628946).

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

664416414 is a wasteful number, since it uses less digits than its factorization.

664416414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12224 (or 12221 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 664416414 is about 25776.2761856712. The cubic root of 664416414 is about 872.5964683991.

The spelling of 664416414 in words is "six hundred sixty-four million, four hundred sixteen thousand, four hundred fourteen".