6866220446 has 8 divisors (see below), whose sum is σ = 10319100624. Its totient is φ = 3426520240.

The previous prime is 6866220443. The next prime is 6866220527. The reversal of 6866220446 is 6440226686.

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 = 6866220397 and 6866220406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866220443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3293690 + ... + 3295773.

It is an arithmetic number, because the mean of its divisors is an integer number (1289887578).

Almost surely, 2^6866220446 is an apocalyptic number.

6866220446 is a deficient number, since it is larger than the sum of its proper divisors (3452880178).

6866220446 is a wasteful number, since it uses less digits than its factorization.

6866220446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589986.

The product of its (nonzero) digits is 663552, while the sum is 44.

The square root of 6866220446 is about 82862.6601431550. The cubic root of 6866220446 is about 1900.6664740383. Note that the first 3 decimals are identical.

The spelling of 6866220446 in words is "six billion, eight hundred sixty-six million, two hundred twenty thousand, four hundred forty-six".