664652353 has 4 divisors (see below), whose sum is σ = 680863428. Its totient is φ = 648441280.

The previous prime is 664652347. The next prime is 664652393. The reversal of 664652353 is 353256466.

664652353 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 118635664 + 546016689 = 10892^2 + 23367^2 .

It is a cyclic number.

It is not a de Polignac number, because 664652353 - 2¹³ = 664644161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664652393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8105476 + ... + 8105557.

It is an arithmetic number, because the mean of its divisors is an integer number (170215857).

Almost surely, 2^664652353 is an apocalyptic number.

It is an amenable number.

664652353 is a deficient number, since it is larger than the sum of its proper divisors (16211075).

664652353 is a wasteful number, since it uses less digits than its factorization.

664652353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16211074.

The product of its digits is 388800, while the sum is 40.

The square root of 664652353 is about 25780.8524490561. The cubic root of 664652353 is about 872.6997445820.

The spelling of 664652353 in words is "six hundred sixty-four million, six hundred fifty-two thousand, three hundred fifty-three".