22778065296 has 160 divisors (see below), whose sum is σ = 74879969280. Its totient is φ = 6494235264.

The previous prime is 22778065273. The next prime is 22778065333. The reversal of 22778065296 is 69256087722.

22778065296 is a `hidden beast` number, since 2 + 277 + 80 + 6 + 5 + 296 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 1464955 + ... + 1480421.

It is an arithmetic number, because the mean of its divisors is an integer number (467999808).

Almost surely, 2^22778065296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22778065296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37439984640).

22778065296 is an abundant number, since it is smaller than the sum of its proper divisors (52101903984).

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

22778065296 is a wasteful number, since it uses less digits than its factorization.

22778065296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15978 (or 15966 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 22778065296 in words is "twenty-two billion, seven hundred seventy-eight million, sixty-five thousand, two hundred ninety-six".