4421156660 has 24 divisors (see below), whose sum is σ = 9288341160. Its totient is φ = 1767717504.

The previous prime is 4421156657. The next prime is 4421156689. The reversal of 4421156660 is 666511244.

It can be written as a sum of positive squares in 4 ways, for example, as 2356908304 + 2064248356 = 48548^2 + 45434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4421156660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3386 + ... + 94094.

It is an arithmetic number, because the mean of its divisors is an integer number (387014215).

Almost surely, 2^4421156660 is an apocalyptic number.

It is an amenable number.

4421156660 is an abundant number, since it is smaller than the sum of its proper divisors (4867184500).

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

4421156660 is a wasteful number, since it uses less digits than its factorization.

4421156660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93155 (or 93153 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 4421156660 is about 66491.7788903260. The cubic root of 4421156660 is about 1641.2647219327.

The spelling of 4421156660 in words is "four billion, four hundred twenty-one million, one hundred fifty-six thousand, six hundred sixty".