2220571668 has 48 divisors (see below), whose sum is σ = 5937741824. Its totient is φ = 632711520.

The previous prime is 2220571663. The next prime is 2220571679. The reversal of 2220571668 is 8661750222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220571663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5188 + ... + 66843.

Almost surely, 2^2220571668 is an apocalyptic number.

2220571668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2220571668 is an abundant number, since it is smaller than the sum of its proper divisors (3717170156).

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

2220571668 is a wasteful number, since it uses less digits than its factorization.

2220571668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72412 (or 72410 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2220571668 is about 47122.9420558606. The cubic root of 2220571668 is about 1304.6327153005.

The spelling of 2220571668 in words is "two billion, two hundred twenty million, five hundred seventy-one thousand, six hundred sixty-eight".