2215005648 has 80 divisors (see below), whose sum is σ = 5958076992. Its totient is φ = 708480000.

The previous prime is 2215005647. The next prime is 2215005659. The reversal of 2215005648 is 8465005122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215005641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 110823 + ... + 129273.

Almost surely, 2^2215005648 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 2215005648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2979038496).

2215005648 is an abundant number, since it is smaller than the sum of its proper divisors (3743071344).

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

2215005648 is a wasteful number, since it uses less digits than its factorization.

2215005648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18564 (or 18558 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2215005648 is about 47063.8465066339. The cubic root of 2215005648 is about 1303.5417518635.

The spelling of 2215005648 in words is "two billion, two hundred fifteen million, five thousand, six hundred forty-eight".