22534405020 has 144 divisors (see below), whose sum is σ = 71889592320. Its totient is φ = 5702514048.

The previous prime is 22534404979. The next prime is 22534405031. The reversal of 22534405020 is 2050443522.

It is a happy number.

22534405020 is a `hidden beast` number, since 2 + 253 + 4 + 405 + 0 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504351 + ... + 547209.

It is an arithmetic number, because the mean of its divisors is an integer number (499233280).

Almost surely, 2^22534405020 is an apocalyptic number.

22534405020 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 22534405020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35944796160).

22534405020 is an abundant number, since it is smaller than the sum of its proper divisors (49355187300).

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

22534405020 is a wasteful number, since it uses less digits than its factorization.

22534405020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43024 (or 43019 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 22534405020 its reverse (2050443522), we get a palindrome (24584848542).

The spelling of 22534405020 in words is "twenty-two billion, five hundred thirty-four million, four hundred five thousand, twenty".