646060066202 has 8 divisors (see below), whose sum is σ = 1026095399316. Its totient is φ = 304028266432.

The previous prime is 646060066123. The next prime is 646060066213. The reversal of 646060066202 is 202660060646.

It can be written as a sum of positive squares in 2 ways, for example, as 633025505641 + 13034560561 = 795629^2 + 114169^2 .

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

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, 9500883293 + ... + 9500883360.

Almost surely, 2^646060066202 is an apocalyptic number.

646060066202 is a deficient number, since it is larger than the sum of its proper divisors (380035333114).

646060066202 is a wasteful number, since it uses less digits than its factorization.

646060066202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19001766672.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 646060066202 in words is "six hundred forty-six billion, sixty million, sixty-six thousand, two hundred two".