22520779632 has 240 divisors, whose sum is σ = 70890150240. Its totient is φ = 6626285568.

The previous prime is 22520779607. The next prime is 22520779637. The reversal of 22520779632 is 23697702522.

22520779632 is a `hidden beast` number, since 2 + 2 + 5 + 2 + 0 + 7 + 7 + 9 + 632 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520779637) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5806878 + ... + 5810754.

It is an arithmetic number, because the mean of its divisors is an integer number (295375626).

Almost surely, 2^22520779632 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 22520779632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35445075120).

22520779632 is an abundant number, since it is smaller than the sum of its proper divisors (48369370608).

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

22520779632 is a wasteful number, since it uses less digits than its factorization.

22520779632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040 (or 4031 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 22520779632 in words is "twenty-two billion, five hundred twenty million, seven hundred seventy-nine thousand, six hundred thirty-two".