664014312 has 48 divisors (see below), whose sum is σ = 1936711140. Its totient is φ = 204311808.

The previous prime is 664014289. The next prime is 664014313. The reversal of 664014312 is 213410466.

664014312 is a `hidden beast` number, since 6 + 640 + 1 + 4 + 3 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 656691876 + 7322436 = 25626^2 + 2706^2 .

It is not an unprimeable number, because it can be changed into a prime (664014313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353773 + ... + 355644.

Almost surely, 2^664014312 is an apocalyptic number.

It is an amenable number.

664014312 is an abundant number, since it is smaller than the sum of its proper divisors (1272696828).

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

664014312 is a wasteful number, since it uses less digits than its factorization.

664014312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709442 (or 709435 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 664014312 is about 25768.4751586119. The cubic root of 664014312 is about 872.4204023137.

Adding to 664014312 its reverse (213410466), we get a palindrome (877424778).

The spelling of 664014312 in words is "six hundred sixty-four million, fourteen thousand, three hundred twelve".