664263301 has 4 divisors (see below), whose sum is σ = 715360492. Its totient is φ = 613166112.

The previous prime is 664263293. The next prime is 664263323. The reversal of 664263301 is 103362466.

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 416200801 + 248062500 = 20401^2 + 15750^2 .

It is not a de Polignac number, because 664263301 - 2³ = 664263293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664263371) 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 3 ways as a sum of consecutive naturals, for example, 25548576 + ... + 25548601.

It is an arithmetic number, because the mean of its divisors is an integer number (178840123).

Almost surely, 2^664263301 is an apocalyptic number.

It is an amenable number.

664263301 is a deficient number, since it is larger than the sum of its proper divisors (51097191).

664263301 is a wasteful number, since it uses less digits than its factorization.

664263301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51097190.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 664263301 is about 25773.3059773092. The cubic root of 664263301 is about 872.5294340691.

The spelling of 664263301 in words is "six hundred sixty-four million, two hundred sixty-three thousand, three hundred one".