2221563064 has 64 divisors (see below), whose sum is σ = 4832372160. Its totient is φ = 937820160.

The previous prime is 2221563061. The next prime is 2221563073. The reversal of 2221563064 is 4603651222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221563061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1308264 + ... + 1309960.

It is an arithmetic number, because the mean of its divisors is an integer number (75505815).

Almost surely, 2^2221563064 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 2221563064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2416186080).

2221563064 is an abundant number, since it is smaller than the sum of its proper divisors (2610809096).

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

2221563064 is a wasteful number, since it uses less digits than its factorization.

2221563064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2221563064 is about 47133.4601318426. The cubic root of 2221563064 is about 1304.8268417705.

The spelling of 2221563064 in words is "two billion, two hundred twenty-one million, five hundred sixty-three thousand, sixty-four".