4221556704 has 120 divisors (see below), whose sum is σ = 12438723528. Its totient is φ = 1404552960.

The previous prime is 4221556673. The next prime is 4221556711. The reversal of 4221556704 is 4076551224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1789894 + ... + 1792250.

Almost surely, 2^4221556704 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 4221556704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6219361764).

4221556704 is an abundant number, since it is smaller than the sum of its proper divisors (8217166824).

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

4221556704 is a wasteful number, since it uses less digits than its factorization.

4221556704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070 (or 3053 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 4221556704 is about 64973.5077089116. The cubic root of 4221556704 is about 1616.1842705598.

The spelling of 4221556704 in words is "four billion, two hundred twenty-one million, five hundred fifty-six thousand, seven hundred four".