6668802818 has 48 divisors (see below), whose sum is σ = 10907841024. Its totient is φ = 3055099680.

The previous prime is 6668802797. The next prime is 6668802839. The reversal of 6668802818 is 8182088666.

It is an interprime number because it is at equal distance from previous prime (6668802797) and next prime (6668802839).

It is a super-2 number, since 2×6668802818² = 88945862050729482248, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6668802818.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5101721 + ... + 5103027.

It is an arithmetic number, because the mean of its divisors is an integer number (227246688).

Almost surely, 2^6668802818 is an apocalyptic number.

6668802818 is a deficient number, since it is larger than the sum of its proper divisors (4239038206).

6668802818 is a wasteful number, since it uses less digits than its factorization.

6668802818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 53.

The square root of 6668802818 is about 81662.7382470120. The cubic root of 6668802818 is about 1882.2730558323.

The spelling of 6668802818 in words is "six billion, six hundred sixty-eight million, eight hundred two thousand, eight hundred eighteen".