2215106544 has 120 divisors (see below), whose sum is σ = 6676715520. Its totient is φ = 630978432.

The previous prime is 2215106533. The next prime is 2215106599. The reversal of 2215106544 is 4456015122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899587 + ... + 902045.

It is an arithmetic number, because the mean of its divisors is an integer number (55639296).

Almost surely, 2^2215106544 is an apocalyptic number.

2215106544 is a gapful number since it is divisible by the number (24) 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 2215106544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3338357760).

2215106544 is an abundant number, since it is smaller than the sum of its proper divisors (4461608976).

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

2215106544 is a wasteful number, since it uses less digits than its factorization.

2215106544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867 (or 2854 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2215106544 is about 47064.9184000143. The cubic root of 2215106544 is about 1303.5615441609.

The spelling of 2215106544 in words is "two billion, two hundred fifteen million, one hundred six thousand, five hundred forty-four".