664247202 has 16 divisors (see below), whose sum is σ = 1328955552. Its totient is φ = 221338880.

The previous prime is 664247197. The next prime is 664247209. The reversal of 664247202 is 202742466.

It is not an unprimeable number, because it can be changed into a prime (664247209) 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 7 ways as a sum of consecutive naturals, for example, 1177 + ... + 36467.

It is an arithmetic number, because the mean of its divisors is an integer number (83059722).

Almost surely, 2^664247202 is an apocalyptic number.

664247202 is an abundant number, since it is smaller than the sum of its proper divisors (664708350).

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

664247202 is a wasteful number, since it uses less digits than its factorization.

664247202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38433.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 664247202 is about 25772.9936561510. The cubic root of 664247202 is about 872.5223851751.

Adding to 664247202 its reverse (202742466), we get a palindrome (866989668).

The spelling of 664247202 in words is "six hundred sixty-four million, two hundred forty-seven thousand, two hundred two".