6831661266 has 24 divisors (see below), whose sum is σ = 14914929744. Its totient is φ = 2259836280.

The previous prime is 6831661247. The next prime is 6831661289. The reversal of 6831661266 is 6621661386.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1446256 + ... + 1450971.

It is an arithmetic number, because the mean of its divisors is an integer number (621455406).

Almost surely, 2^6831661266 is an apocalyptic number.

6831661266 is an abundant number, since it is smaller than the sum of its proper divisors (8083268478).

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

6831661266 is a wasteful number, since it uses less digits than its factorization.

6831661266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897366 (or 2897363 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 6831661266 is about 82653.8641927890. The cubic root of 6831661266 is about 1897.4722865132.

The spelling of 6831661266 in words is "six billion, eight hundred thirty-one million, six hundred sixty-one thousand, two hundred sixty-six".