6663826946 has 16 divisors (see below), whose sum is σ = 12024951360. Its totient is φ = 2705613840.

The previous prime is 6663826937. The next prime is 6663826969. The reversal of 6663826946 is 6496283666.

It is a junction number, because it is equal to n+sod(n) for n = 6663826891 and 6663826900.

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, 12525725 + ... + 12526256.

It is an arithmetic number, because the mean of its divisors is an integer number (751559460).

Almost surely, 2^6663826946 is an apocalyptic number.

6663826946 is a deficient number, since it is larger than the sum of its proper divisors (5361124414).

6663826946 is a wasteful number, since it uses less digits than its factorization.

6663826946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25052009.

The product of its digits is 13436928, while the sum is 56.

The square root of 6663826946 is about 81632.2665739473. The cubic root of 6663826946 is about 1881.8047918645.

The spelling of 6663826946 in words is "six billion, six hundred sixty-three million, eight hundred twenty-six thousand, nine hundred forty-six".