11022020064 has 144 divisors (see below), whose sum is σ = 34988937984. Its totient is φ = 3262291200.

The previous prime is 11022020063. The next prime is 11022020143. The reversal of 11022020064 is 46002022011.

11022020064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022020063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95769 + ... + 176679.

It is an arithmetic number, because the mean of its divisors is an integer number (242978736).

Almost surely, 2^11022020064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11022020064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17494468992).

11022020064 is an abundant number, since it is smaller than the sum of its proper divisors (23966917920).

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

11022020064 is a wasteful number, since it uses less digits than its factorization.

11022020064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80981 (or 80970 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11022020064 its reverse (46002022011), we get a palindrome (57024042075).

The spelling of 11022020064 in words is "eleven billion, twenty-two million, twenty thousand, sixty-four".