6646022566452 has 72 divisors (see below), whose sum is σ = 16828861008960. Its totient is φ = 2211492136320.

The previous prime is 6646022566433. The next prime is 6646022566483. The reversal of 6646022566452 is 2546652206466.

6646022566452 is a `hidden beast` number, since 6 + 6 + 4 + 6 + 0 + 22 + 566 + 4 + 52 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 277936377 + ... + 277960287.

It is an arithmetic number, because the mean of its divisors is an integer number (233734180680).

Almost surely, 2^{6646022566452} is an apocalyptic number.

It is an amenable number.

6646022566452 is an abundant number, since it is smaller than the sum of its proper divisors (10182838442508).

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

6646022566452 is a wasteful number, since it uses less digits than its factorization.

6646022566452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37013 (or 37008 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 54.

The spelling of 6646022566452 in words is "six trillion, six hundred forty-six billion, twenty-two million, five hundred sixty-six thousand, four hundred fifty-two".