6566233204440 has 192 divisors, whose sum is σ = 26264932948800. Its totient is φ = 1385403042816.

The previous prime is 6566233204373. The next prime is 6566233204481. The reversal of 6566233204440 is 444023326656.

6566233204440 is a `hidden beast` number, since 6 + 566 + 2 + 3 + 3 + 2 + 0 + 44 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100184475 + ... + 100249994.

It is an arithmetic number, because the mean of its divisors is an integer number (136796525775).

Almost surely, 2^{6566233204440} is an apocalyptic number.

6566233204440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6566233204440 is an abundant number, since it is smaller than the sum of its proper divisors (19698699744360).

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

6566233204440 is a wasteful number, since it uses less digits than its factorization.

6566233204440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200434506 (or 200434499 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 45.

The spelling of 6566233204440 in words is "six trillion, five hundred sixty-six billion, two hundred thirty-three million, two hundred four thousand, four hundred forty".