20228611320 has 96 divisors (see below), whose sum is σ = 68601405600. Its totient is φ = 5159759616.

The previous prime is 20228611279. The next prime is 20228611339. The reversal of 20228611320 is 2311682202.

20228611320 is a `hidden beast` number, since 2 + 0 + 2 + 28 + 611 + 3 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1213255 + ... + 1229814.

It is an arithmetic number, because the mean of its divisors is an integer number (714597975).

Almost surely, 2^20228611320 is an apocalyptic number.

20228611320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20228611320 is an abundant number, since it is smaller than the sum of its proper divisors (48372794280).

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

20228611320 is a wasteful number, since it uses less digits than its factorization.

20228611320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443109 (or 2443102 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 20228611320 in words is "twenty billion, two hundred twenty-eight million, six hundred eleven thousand, three hundred twenty".