2220665024 has 56 divisors (see below), whose sum is σ = 4655759040. Its totient is φ = 1049194496.

The previous prime is 2220665011. The next prime is 2220665047. The reversal of 2220665024 is 4205660222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74504 + ... + 99960.

Almost surely, 2^2220665024 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 2220665024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2327879520).

2220665024 is an abundant number, since it is smaller than the sum of its proper divisors (2435094016).

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

2220665024 is a wasteful number, since it uses less digits than its factorization.

2220665024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25545 (or 25535 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2220665024 is about 47123.9326032962. The cubic root of 2220665024 is about 1304.6509979176.

The spelling of 2220665024 in words is "two billion, two hundred twenty million, six hundred sixty-five thousand, twenty-four".