664022014 has 4 divisors (see below), whose sum is σ = 996033024. Its totient is φ = 332011006.

The previous prime is 664022011. The next prime is 664022041. The reversal of 664022014 is 410220466.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 664022014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166005502 + ... + 166005505.

It is an arithmetic number, because the mean of its divisors is an integer number (249008256).

Almost surely, 2^664022014 is an apocalyptic number.

664022014 is a deficient number, since it is larger than the sum of its proper divisors (332011010).

664022014 is a wasteful number, since it uses less digits than its factorization.

664022014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332011009.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 664022014 is about 25768.6246043517. The cubic root of 664022014 is about 872.4237754117.

The spelling of 664022014 in words is "six hundred sixty-four million, twenty-two thousand, fourteen".