6444200266 has 16 divisors (see below), whose sum is σ = 11066360256. Its totient is φ = 2757010176.

The previous prime is 6444200233. The next prime is 6444200291. The reversal of 6444200266 is 6620024446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390796 + ... + 406951.

It is an arithmetic number, because the mean of its divisors is an integer number (691647516).

Almost surely, 2^6444200266 is an apocalyptic number.

6444200266 is a deficient number, since it is larger than the sum of its proper divisors (4622159990).

6444200266 is a wasteful number, since it uses less digits than its factorization.

6444200266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798333.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 6444200266 is about 80275.7763338356. The cubic root of 6444200266 is about 1860.8998869433.

The spelling of 6444200266 in words is "six billion, four hundred forty-four million, two hundred thousand, two hundred sixty-six".