646927688006 has 16 divisors (see below), whose sum is σ = 976151802960. Its totient is φ = 321548881920.

The previous prime is 646927687993. The next prime is 646927688023. The reversal of 646927688006 is 600886729646.

646927688006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 646927688006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029311 + ... + 1534058.

It is an arithmetic number, because the mean of its divisors is an integer number (61009487685).

Almost surely, 2^646927688006 is an apocalyptic number.

646927688006 is a deficient number, since it is larger than the sum of its proper divisors (329224114954).

646927688006 is a wasteful number, since it uses less digits than its factorization.

646927688006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564119.

The product of its (nonzero) digits is 41803776, while the sum is 62.

The spelling of 646927688006 in words is "six hundred forty-six billion, nine hundred twenty-seven million, six hundred eighty-eight thousand, six".