646303666214 has 32 divisors (see below), whose sum is σ = 1006630208640. Its totient is φ = 310982630400.

The previous prime is 646303666213. The next prime is 646303666243. The reversal of 646303666214 is 412666303646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646303666213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6826142 + ... + 6920174.

It is an arithmetic number, because the mean of its divisors is an integer number (31457194020).

Almost surely, 2^646303666214 is an apocalyptic number.

646303666214 is a deficient number, since it is larger than the sum of its proper divisors (360326542426).

646303666214 is a wasteful number, since it uses less digits than its factorization.

646303666214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95216.

The product of its (nonzero) digits is 2239488, while the sum is 47.

The spelling of 646303666214 in words is "six hundred forty-six billion, three hundred three million, six hundred sixty-six thousand, two hundred fourteen".