20022266880 has 1584 divisors, whose sum is σ = 95135389440. Its totient is φ = 3941498880.

The previous prime is 20022266867. The next prime is 20022266881. The reversal of 20022266880 is 8866222002.

It is a tau number, because it is divible by the number of its divisors (1584).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022266881) 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 143 ways as a sum of consecutive naturals, for example, 1053803511 + ... + 1053803529.

Almost surely, 2^20022266880 is an apocalyptic number.

20022266880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022266880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47567694720).

20022266880 is an abundant number, since it is smaller than the sum of its proper divisors (75113122560).

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

20022266880 is a wasteful number, since it uses less digits than its factorization.

20022266880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 20022266880 its reverse (8866222002), we get a palindrome (28888488882).

The spelling of 20022266880 in words is "twenty billion, twenty-two million, two hundred sixty-six thousand, eight hundred eighty".