8005506566 has 8 divisors (see below), whose sum is σ = 12010813320. Its totient is φ = 4001902128.

The previous prime is 8005506559. The next prime is 8005506589. The reversal of 8005506566 is 6656055008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8005506566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413756 + ... + 432671.

It is an arithmetic number, because the mean of its divisors is an integer number (1501351665).

Almost surely, 2^8005506566 is an apocalyptic number.

8005506566 is a deficient number, since it is larger than the sum of its proper divisors (4005306754).

8005506566 is a wasteful number, since it uses less digits than its factorization.

8005506566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851158.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 8005506566 is about 89473.4964444779. The cubic root of 8005506566 is about 2000.4587752546.

The spelling of 8005506566 in words is "eight billion, five million, five hundred six thousand, five hundred sixty-six".