6722815020 has 48 divisors (see below), whose sum is σ = 18842634720. Its totient is φ = 1790964736.

The previous prime is 6722815009. The next prime is 6722815027. The reversal of 6722815020 is 205182276.

It is not an unprimeable number, because it can be changed into a prime (6722815027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5476 + ... + 116084.

It is an arithmetic number, because the mean of its divisors is an integer number (392554890).

Almost surely, 2^6722815020 is an apocalyptic number.

6722815020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6722815020 is an abundant number, since it is smaller than the sum of its proper divisors (12119819700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6722815020 is a wasteful number, since it uses less digits than its factorization.

6722815020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111634 (or 111632 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 6722815020 is about 81992.7741938276. The cubic root of 6722815020 is about 1887.3410553993.

Adding to 6722815020 its reverse (205182276), we get a palindrome (6927997296).

The spelling of 6722815020 in words is "six billion, seven hundred twenty-two million, eight hundred fifteen thousand, twenty".