6566045209772 has 24 divisors (see below), whose sum is σ = 12199113533376. Its totient is φ = 3081619692288.

The previous prime is 6566045209739. The next prime is 6566045209793. The reversal of 6566045209772 is 2779025406656.

It is a super-3 number, since 3×6566045209772³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 129410948 + ... + 129461675.

It is an arithmetic number, because the mean of its divisors is an integer number (508296397224).

Almost surely, 2^{6566045209772} is an apocalyptic number.

It is an amenable number.

6566045209772 is a deficient number, since it is larger than the sum of its proper divisors (5633068323604).

6566045209772 is a wasteful number, since it uses less digits than its factorization.

6566045209772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258873017 (or 258873015 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 6566045209772 in words is "six trillion, five hundred sixty-six billion, forty-five million, two hundred nine thousand, seven hundred seventy-two".