6650664266 has 8 divisors (see below), whose sum is σ = 9982656000. Its totient is φ = 3323112268.

The previous prime is 6650664211. The next prime is 6650664269. The reversal of 6650664266 is 6624660566.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6650664266.

It is not an unprimeable number, because it can be changed into a prime (6650664269) 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, 1106186 + ... + 1112181.

It is an arithmetic number, because the mean of its divisors is an integer number (1247832000).

Almost surely, 2^6650664266 is an apocalyptic number.

6650664266 is a deficient number, since it is larger than the sum of its proper divisors (3331991734).

6650664266 is a wasteful number, since it uses less digits than its factorization.

6650664266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219868.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The square root of 6650664266 is about 81551.6049259608. The cubic root of 6650664266 is about 1880.5649677075.

The spelling of 6650664266 in words is "six billion, six hundred fifty million, six hundred sixty-four thousand, two hundred sixty-six".