22008778080 has 192 divisors, whose sum is σ = 71687851200. Its totient is φ = 5671378944.

The previous prime is 22008778061. The next prime is 22008778097. The reversal of 22008778080 is 8087780022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2642082 + ... + 2650398.

It is an arithmetic number, because the mean of its divisors is an integer number (373374225).

Almost surely, 2^22008778080 is an apocalyptic number.

22008778080 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 22008778080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35843925600).

22008778080 is an abundant number, since it is smaller than the sum of its proper divisors (49679073120).

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

22008778080 is a wasteful number, since it uses less digits than its factorization.

22008778080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8521 (or 8513 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 22008778080 in words is "twenty-two billion, eight million, seven hundred seventy-eight thousand, eighty".