22014547128 has 144 divisors (see below), whose sum is σ = 69457101480. Its totient is φ = 6280799616.

The previous prime is 22014547091. The next prime is 22014547199. The reversal of 22014547128 is 82174541022.

22014547128 is a `hidden beast` number, since 2 + 20 + 145 + 471 + 28 = 666.

It is a Cunningham number, because it is equal to 148373²-1.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22014547092 and 22014547101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2666575 + ... + 2674817.

Almost surely, 2^22014547128 is an apocalyptic number.

22014547128 is a gapful number since it is divisible by the number (28) 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 22014547128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34728550740).

22014547128 is an abundant number, since it is smaller than the sum of its proper divisors (47442554352).

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

22014547128 is a wasteful number, since it uses less digits than its factorization.

22014547128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9026 (or 9012 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The spelling of 22014547128 in words is "twenty-two billion, fourteen million, five hundred forty-seven thousand, one hundred twenty-eight".