6227661220 has 96 divisors (see below), whose sum is σ = 14587776000. Its totient is φ = 2214115200.

The previous prime is 6227661203. The next prime is 6227661239. The reversal of 6227661220 is 221667226.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2581815 + ... + 2584225.

It is an arithmetic number, because the mean of its divisors is an integer number (151956000).

Almost surely, 2^6227661220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6227661220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7293888000).

6227661220 is an abundant number, since it is smaller than the sum of its proper divisors (8360114780).

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

6227661220 is a wasteful number, since it uses less digits than its factorization.

6227661220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 6227661220 is about 78915.5321847353. The cubic root of 6227661220 is about 1839.8185489783.

The spelling of 6227661220 in words is "six billion, two hundred twenty-seven million, six hundred sixty-one thousand, two hundred twenty".