22785557760 has 216 divisors, whose sum is σ = 90098211840. Its totient is φ = 5208109056.

The previous prime is 22785557741. The next prime is 22785557771. The reversal of 22785557760 is 6775558722.

22785557760 is a `hidden beast` number, since 2 + 2 + 7 + 8 + 5 + 5 + 577 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22785557697 and 22785557706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60640 + ... + 221919.

Almost surely, 2^22785557760 is an apocalyptic number.

22785557760 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 22785557760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45049105920).

22785557760 is an abundant number, since it is smaller than the sum of its proper divisors (67312654080).

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

22785557760 is a wasteful number, since it uses less digits than its factorization.

22785557760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282593 (or 282576 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 54.

The spelling of 22785557760 in words is "twenty-two billion, seven hundred eighty-five million, five hundred fifty-seven thousand, seven hundred sixty".