64652225609 has 8 divisors (see below), whose sum is σ = 64710146952. Its totient is φ = 64594333440.

The previous prime is 64652225551. The next prime is 64652225621. The reversal of 64652225609 is 90652225646.

It can be written as a sum of positive squares in 4 ways, for example, as 4079632384 + 60572593225 = 63872^2 + 246115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64652225609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64652225629) 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, 7265567 + ... + 7274459.

It is an arithmetic number, because the mean of its divisors is an integer number (8088768369).

Almost surely, 2^64652225609 is an apocalyptic number.

It is an amenable number.

64652225609 is a deficient number, since it is larger than the sum of its proper divisors (57921343).

64652225609 is a wasteful number, since it uses less digits than its factorization.

64652225609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14587.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 64652225609 in words is "sixty-four billion, six hundred fifty-two million, two hundred twenty-five thousand, six hundred nine".