6640512520252 has 12 divisors (see below), whose sum is σ = 12514812057496. Its totient is φ = 3064851932400.

The previous prime is 6640512520181. The next prime is 6640512520267. The reversal of 6640512520252 is 2520252150466.

It is a congruent number.

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, 63851081874 + ... + 63851081977.

Almost surely, 2^{6640512520252} is an apocalyptic number.

It is an amenable number.

6640512520252 is a deficient number, since it is larger than the sum of its proper divisors (5874299537244).

6640512520252 is a wasteful number, since it uses less digits than its factorization.

6640512520252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127702163868 (or 127702163866 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 6640512520252 in words is "six trillion, six hundred forty billion, five hundred twelve million, five hundred twenty thousand, two hundred fifty-two".