22980398878656 has 168 divisors, whose sum is σ = 69443148977280. Its totient is φ = 7245749500416.

The previous prime is 22980398878651. The next prime is 22980398878663. The reversal of 22980398878656 is 65687889308922.

22980398878656 is a `hidden beast` number, since 2 + 2 + 98 + 0 + 398 + 87 + 8 + 65 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22980398878651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5458035 + ... + 8703501.

Almost surely, 2^{22980398878656} 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 22980398878656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34721574488640).

22980398878656 is an abundant number, since it is smaller than the sum of its proper divisors (46462750098624).

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

22980398878656 is a wasteful number, since it uses less digits than its factorization.

22980398878656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246151 (or 3246138 counting only the distinct ones).

The product of its (nonzero) digits is 5016453120, while the sum is 81.

The spelling of 22980398878656 in words is "twenty-two trillion, nine hundred eighty billion, three hundred ninety-eight million, eight hundred seventy-eight thousand, six hundred fifty-six".