20222566184064 has 128 divisors (see below), whose sum is σ = 55594469721600. Its totient is φ = 6505367371776.

The previous prime is 20222566184063. The next prime is 20222566184071. The reversal of 20222566184064 is 46048166522202.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (20222566184063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23440752 + ... + 24288144.

It is an arithmetic number, because the mean of its divisors is an integer number (434331794700).

Almost surely, 2^{20222566184064} is an apocalyptic number.

20222566184064 is a gapful number since it is divisible by the number (24) 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 20222566184064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27797234860800).

20222566184064 is an abundant number, since it is smaller than the sum of its proper divisors (35371903537536).

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

20222566184064 is a wasteful number, since it uses less digits than its factorization.

20222566184064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849582 (or 849570 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 20222566184064 in words is "twenty trillion, two hundred twenty-two billion, five hundred sixty-six million, one hundred eighty-four thousand, sixty-four".