20110220650 has 96 divisors (see below), whose sum is σ = 41467345920. Its totient is φ = 7208974080.

The previous prime is 20110220639. The next prime is 20110220677. The reversal of 20110220650 is 5602201102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4833271 + ... + 4837429.

It is an arithmetic number, because the mean of its divisors is an integer number (431951520).

Almost surely, 2^20110220650 is an apocalyptic number.

20110220650 is an abundant number, since it is smaller than the sum of its proper divisors (21357125270).

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

20110220650 is a wasteful number, since it uses less digits than its factorization.

20110220650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 20110220650 its reverse (5602201102), we get a palindrome (25712421752).

The spelling of 20110220650 in words is "twenty billion, one hundred ten million, two hundred twenty thousand, six hundred fifty".