20228436361320 has 128 divisors (see below), whose sum is σ = 66277303505280. Its totient is φ = 4898296832000.

The previous prime is 20228436361319. The next prime is 20228436361321. The reversal of 20228436361320 is 2316363482202.

It is an interprime number because it is at equal distance from previous prime (20228436361319) and next prime (20228436361321).

It is not an unprimeable number, because it can be changed into a prime (20228436361321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7534341 + ... + 9860180.

It is an arithmetic number, because the mean of its divisors is an integer number (517791433635).

Almost surely, 2^{20228436361320} is an apocalyptic number.

20228436361320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20228436361320 is an abundant number, since it is smaller than the sum of its proper divisors (46048867143960).

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

20228436361320 is a wasteful number, since it uses less digits than its factorization.

20228436361320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17395427 (or 17395423 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20228436361320 in words is "twenty trillion, two hundred twenty-eight billion, four hundred thirty-six million, three hundred sixty-one thousand, three hundred twenty".