20422224660 has 24 divisors (see below), whose sum is σ = 57182229216. Its totient is φ = 5445926560.

The previous prime is 20422224637. The next prime is 20422224673. The reversal of 20422224660 is 6642222402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 170185146 + ... + 170185265.

It is an arithmetic number, because the mean of its divisors is an integer number (2382592884).

Almost surely, 2^20422224660 is an apocalyptic number.

20422224660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422224660 is an abundant number, since it is smaller than the sum of its proper divisors (36760004556).

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

20422224660 is a wasteful number, since it uses less digits than its factorization.

20422224660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340370423 (or 340370421 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 20422224660 in words is "twenty billion, four hundred twenty-two million, two hundred twenty-four thousand, six hundred sixty".