6681924466452 has 72 divisors (see below), whose sum is σ = 17027153375232. Its totient is φ = 2209285108800.

The previous prime is 6681924466339. The next prime is 6681924466487. The reversal of 6681924466452 is 2546644291866.

6681924466452 is a `hidden beast` number, since 6 + 6 + 81 + 9 + 2 + 44 + 66 + 452 = 666.

It is a super-2 number, since 2×6681924466452² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6681924466452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20969077 + ... + 21285347.

Almost surely, 2^{6681924466452} is an apocalyptic number.

It is an amenable number.

6681924466452 is an abundant number, since it is smaller than the sum of its proper divisors (10345228908780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6681924466452 is a wasteful number, since it uses less digits than its factorization.

6681924466452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321029 (or 321024 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 6681924466452 in words is "six trillion, six hundred eighty-one billion, nine hundred twenty-four million, four hundred sixty-six thousand, four hundred fifty-two".