664283045 has 4 divisors (see below), whose sum is σ = 797139660. Its totient is φ = 531426432.

The previous prime is 664283027. The next prime is 664283069. The reversal of 664283045 is 540382466.

664283045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 287573764 + 376709281 = 16958^2 + 19409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664283045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66428300 + ... + 66428309.

It is an arithmetic number, because the mean of its divisors is an integer number (199284915).

Almost surely, 2^664283045 is an apocalyptic number.

It is an amenable number.

664283045 is a deficient number, since it is larger than the sum of its proper divisors (132856615).

664283045 is a wasteful number, since it uses less digits than its factorization.

664283045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132856614.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 664283045 is about 25773.6890064267. The cubic root of 664283045 is about 872.5380787589.

The spelling of 664283045 in words is "six hundred sixty-four million, two hundred eighty-three thousand, forty-five".