6722216403 has 8 divisors (see below), whose sum is σ = 10243377408. Its totient is φ = 3841266504.

The previous prime is 6722216387. The next prime is 6722216437. The reversal of 6722216403 is 3046122276.

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

It is not a de Polignac number, because 6722216403 - 2⁴ = 6722216387 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6722215403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160052751 + ... + 160052792.

It is an arithmetic number, because the mean of its divisors is an integer number (1280422176).

Almost surely, 2^6722216403 is an apocalyptic number.

6722216403 is a deficient number, since it is larger than the sum of its proper divisors (3521161005).

6722216403 is a wasteful number, since it uses less digits than its factorization.

6722216403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320105553.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 6722216403 is about 81989.1236872306. The cubic root of 6722216403 is about 1887.2850358117.

Adding to 6722216403 its reverse (3046122276), we get a palindrome (9768338679).

The spelling of 6722216403 in words is "six billion, seven hundred twenty-two million, two hundred sixteen thousand, four hundred three".