2216412576 has 72 divisors (see below), whose sum is σ = 7203347424. Its totient is φ = 633260160.

The previous prime is 2216412571. The next prime is 2216412577. The reversal of 2216412576 is 6752146122.

It is a happy number.

2216412576 is a `hidden beast` number, since 2 + 2 + 1 + 641 + 2 + 5 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2216412576.

It is not an unprimeable number, because it can be changed into a prime (2216412571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547690 + ... + 551721.

It is an arithmetic number, because the mean of its divisors is an integer number (100046492).

Almost surely, 2^2216412576 is an apocalyptic number.

It is an amenable number.

2216412576 is an abundant number, since it is smaller than the sum of its proper divisors (4986934848).

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

2216412576 is a wasteful number, since it uses less digits than its factorization.

2216412576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099434 (or 1099423 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2216412576 is about 47078.7911484566. The cubic root of 2216412576 is about 1303.8176881384.

Adding to 2216412576 its reverse (6752146122), we get a palindrome (8968558698).

The spelling of 2216412576 in words is "two billion, two hundred sixteen million, four hundred twelve thousand, five hundred seventy-six".