6564652691996 has 24 divisors (see below), whose sum is σ = 13138467575520. Its totient is φ = 2811459255552.

The previous prime is 6564652691977. The next prime is 6564652692029. The reversal of 6564652691996 is 6991962564656.

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 7 ways as a sum of consecutive naturals, for example, 81764441 + ... + 81844688.

It is an arithmetic number, because the mean of its divisors is an integer number (547436148980).

Almost surely, 2^{6564652691996} is an apocalyptic number.

It is an amenable number.

6564652691996 is an abundant number, since it is smaller than the sum of its proper divisors (6573814883524).

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

6564652691996 is a wasteful number, since it uses less digits than its factorization.

6564652691996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163610573 (or 163610571 counting only the distinct ones).

The product of its digits is 1133740800, while the sum is 74.

The spelling of 6564652691996 in words is "six trillion, five hundred sixty-four billion, six hundred fifty-two million, six hundred ninety-one thousand, nine hundred ninety-six".