6566029966 has 8 divisors (see below), whose sum is σ = 9856871640. Its totient is φ = 3280406088.

The previous prime is 6566029961. The next prime is 6566029997. The reversal of 6566029966 is 6699206656.

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

It is a super-2 number, since 2×6566029966² = 86225499028819922312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6566029961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301301 + ... + 1306336.

It is an arithmetic number, because the mean of its divisors is an integer number (1232108955).

Almost surely, 2^6566029966 is an apocalyptic number.

6566029966 is a deficient number, since it is larger than the sum of its proper divisors (3290841674).

6566029966 is a wasteful number, since it uses less digits than its factorization.

6566029966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608898.

The product of its (nonzero) digits is 6298560, while the sum is 55.

The square root of 6566029966 is about 81031.0432241866. The cubic root of 6566029966 is about 1872.5537250770.

The spelling of 6566029966 in words is "six billion, five hundred sixty-six million, twenty-nine thousand, nine hundred sixty-six".