6662668 has 12 divisors (see below), whose sum is σ = 11692800. Its totient is φ = 3321872.

The previous prime is 6662651. The next prime is 6662671. The reversal of 6662668 is 8662666.

It is a super-2 number, since 2×6662668² = 88782289756448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6662668.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643 + ... + 3706.

It is an arithmetic number, because the mean of its divisors is an integer number (974400).

Almost surely, 2^6662668 is an apocalyptic number.

It is an amenable number.

6662668 is a deficient number, since it is larger than the sum of its proper divisors (5030132).

6662668 is a wasteful number, since it uses less digits than its factorization.

6662668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736 (or 4734 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 6662668 is about 2581.2144428544. The cubic root of 6662668 is about 188.1695693564.

The spelling of 6662668 in words is "six million, six hundred sixty-two thousand, six hundred sixty-eight".