22278367552 has 56 divisors (see below), whose sum is σ = 50542708160. Its totient is φ = 9544366080.

The previous prime is 22278367523. The next prime is 22278367567. The reversal of 22278367552 is 25576387222.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 22278367496 and 22278367505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484824 + ... + 1499752.

It is an arithmetic number, because the mean of its divisors is an integer number (902548360).

Almost surely, 2^22278367552 is an apocalyptic number.

It is an amenable number.

22278367552 is an abundant number, since it is smaller than the sum of its proper divisors (28264340608).

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

22278367552 is a wasteful number, since it uses less digits than its factorization.

22278367552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18279 (or 18269 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The spelling of 22278367552 in words is "twenty-two billion, two hundred seventy-eight million, three hundred sixty-seven thousand, five hundred fifty-two".