646550560546 has 8 divisors (see below), whose sum is σ = 1057991826384. Its totient is φ = 293886618420.

The previous prime is 646550560529. The next prime is 646550560561. The reversal of 646550560546 is 645065055646.

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

It is a junction number, because it is equal to n+sod(n) for n = 646550560493 and 646550560502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14694330900 + ... + 14694330943.

It is an arithmetic number, because the mean of its divisors is an integer number (132248978298).

Almost surely, 2^646550560546 is an apocalyptic number.

646550560546 is a deficient number, since it is larger than the sum of its proper divisors (411441265838).

646550560546 is a wasteful number, since it uses less digits than its factorization.

646550560546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29388661856.

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 646550560546 in words is "six hundred forty-six billion, five hundred fifty million, five hundred sixty thousand, five hundred forty-six".