6221022656 has 28 divisors (see below), whose sum is σ = 12347597352. Its totient is φ = 3109817088.

The previous prime is 6221022649. The next prime is 6221022673. The reversal of 6221022656 is 6562201226.

It is a super-2 number, since 2×6221022656² = 77402245772930588672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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, 396986 + ... + 412358.

Almost surely, 2^6221022656 is an apocalyptic number.

It is an amenable number.

6221022656 is a deficient number, since it is larger than the sum of its proper divisors (6126574696).

6221022656 is a wasteful number, since it uses less digits than its factorization.

6221022656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21708 (or 21698 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6221022656 is about 78873.4597694307. The cubic root of 6221022656 is about 1839.1645797915.

The spelling of 6221022656 in words is "six billion, two hundred twenty-one million, twenty-two thousand, six hundred fifty-six".