22254785280 has 1296 divisors, whose sum is σ = 100832449536. Its totient is φ = 4428103680.

The previous prime is 22254785279. The next prime is 22254785411. The reversal of 22254785280 is 8258745222.

22254785280 is a `hidden beast` number, since 2 + 2 + 2 + 54 + 78 + 528 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 313447645 + ... + 313447715.

It is an arithmetic number, because the mean of its divisors is an integer number (77802816).

Almost surely, 2^22254785280 is an apocalyptic number.

22254785280 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 22254785280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50416224768).

22254785280 is an abundant number, since it is smaller than the sum of its proper divisors (78577664256).

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

22254785280 is a wasteful number, since it uses less digits than its factorization.

22254785280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The spelling of 22254785280 in words is "twenty-two billion, two hundred fifty-four million, seven hundred eighty-five thousand, two hundred eighty".