2204501616 has 80 divisors (see below), whose sum is σ = 6345164320. Its totient is φ = 732810240.

The previous prime is 2204501599. The next prime is 2204501659. The reversal of 2204501616 is 6161054022.

2204501616 is a `hidden beast` number, since 2 + 2 + 0 + 45 + 0 + 1 + 616 = 666.

It is a super-2 number, since 2×2204501616² = 9719654749893222912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2204501616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154296 + ... + 167976.

It is an arithmetic number, because the mean of its divisors is an integer number (79314554).

Almost surely, 2^2204501616 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 2204501616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3172582160).

2204501616 is an abundant number, since it is smaller than the sum of its proper divisors (4140662704).

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

2204501616 is a wasteful number, since it uses less digits than its factorization.

2204501616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14071 (or 14059 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2204501616 is about 46952.1204632975. The cubic root of 2204501616 is about 1301.4779278336.

Adding to 2204501616 its reverse (6161054022), we get a palindrome (8365555638).

The spelling of 2204501616 in words is "two billion, two hundred four million, five hundred one thousand, six hundred sixteen".