20611844228 has 48 divisors (see below), whose sum is σ = 37684120320. Its totient is φ = 9855916800.

The previous prime is 20611844207. The next prime is 20611844237. The reversal of 20611844228 is 82244811602.

It is a junction number, because it is equal to n+sod(n) for n = 20611844191 and 20611844200.

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, 3606293 + ... + 3612003.

It is an arithmetic number, because the mean of its divisors is an integer number (785085840).

Almost surely, 2^20611844228 is an apocalyptic number.

It is an amenable number.

20611844228 is a deficient number, since it is larger than the sum of its proper divisors (17072276092).

20611844228 is a wasteful number, since it uses less digits than its factorization.

20611844228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188 (or 6186 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 20611844228 in words is "twenty billion, six hundred eleven million, eight hundred forty-four thousand, two hundred twenty-eight".