2220104646 has 32 divisors (see below), whose sum is σ = 4943923200. Its totient is φ = 738481320.

The previous prime is 2220104641. The next prime is 2220104671. The reversal of 2220104646 is 6464010222.

2220104646 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 10 + 4 + 646 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220104641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17050 + ... + 68781.

It is an arithmetic number, because the mean of its divisors is an integer number (154497600).

Almost surely, 2^2220104646 is an apocalyptic number.

2220104646 is an abundant number, since it is smaller than the sum of its proper divisors (2723818554).

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

2220104646 is a wasteful number, since it uses less digits than its factorization.

2220104646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86321 (or 86315 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2220104646 is about 47117.9864383019. The cubic root of 2220104646 is about 1304.5412471276.

Adding to 2220104646 its reverse (6464010222), we get a palindrome (8684114868).

The spelling of 2220104646 in words is "two billion, two hundred twenty million, one hundred four thousand, six hundred forty-six".