2663421266 has 24 divisors (see below), whose sum is σ = 4401991440. Its totient is φ = 1207710680.

The previous prime is 2663421259. The next prime is 2663421287. The reversal of 2663421266 is 6621243662.

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, 88265 + ... + 114531.

It is an arithmetic number, because the mean of its divisors is an integer number (183416310).

Almost surely, 2^2663421266 is an apocalyptic number.

2663421266 is a deficient number, since it is larger than the sum of its proper divisors (1738570174).

2663421266 is a wasteful number, since it uses less digits than its factorization.

2663421266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26710 (or 26699 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 2663421266 is about 51608.3449259904. The cubic root of 2663421266 is about 1386.1597615453.

The spelling of 2663421266 in words is "two billion, six hundred sixty-three million, four hundred twenty-one thousand, two hundred sixty-six".