4420165720 has 64 divisors (see below), whose sum is σ = 10283565600. Its totient is φ = 1708753920.

The previous prime is 4420165661. The next prime is 4420165759. The reversal of 4420165720 is 275610244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162886 + ... + 188074.

Almost surely, 2^4420165720 is an apocalyptic number.

4420165720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4420165720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5141782800).

4420165720 is an abundant number, since it is smaller than the sum of its proper divisors (5863399880).

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

4420165720 is a wasteful number, since it uses less digits than its factorization.

4420165720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25348 (or 25344 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 4420165720 is about 66484.3268748357. The cubic root of 4420165720 is about 1641.1420906460.

Adding to 4420165720 its reverse (275610244), we get a palindrome (4695775964).

The spelling of 4420165720 in words is "four billion, four hundred twenty million, one hundred sixty-five thousand, seven hundred twenty".