6396666662 has 8 divisors (see below), whose sum is σ = 9596590992. Its totient is φ = 3197803000.

The previous prime is 6396666637. The next prime is 6396666719. The reversal of 6396666662 is 2666666936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6396666598 and 6396666607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249914 + ... + 274317.

It is an arithmetic number, because the mean of its divisors is an integer number (1199573874).

Almost surely, 2^6396666662 is an apocalyptic number.

6396666662 is a deficient number, since it is larger than the sum of its proper divisors (3199924330).

6396666662 is a wasteful number, since it uses less digits than its factorization.

6396666662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530334.

The product of its digits is 15116544, while the sum is 56.

The square root of 6396666662 is about 79979.1639241121. The cubic root of 6396666662 is about 1856.3131444591.

The spelling of 6396666662 in words is "six billion, three hundred ninety-six million, six hundred sixty-six thousand, six hundred sixty-two".