20798677224 has 288 divisors, whose sum is σ = 63107066880. Its totient is φ = 6181733376.

The previous prime is 20798677219. The next prime is 20798677247. The reversal of 20798677224 is 42277689702.

It is a happy 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 71 ways as a sum of consecutive naturals, for example, 66449292 + ... + 66449604.

It is an arithmetic number, because the mean of its divisors is an integer number (219121760).

Almost surely, 2^20798677224 is an apocalyptic number.

20798677224 is a gapful number since it is divisible by the number (24) 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 20798677224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31553533440).

20798677224 is an abundant number, since it is smaller than the sum of its proper divisors (42308389656).

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

20798677224 is a wasteful number, since it uses less digits than its factorization.

20798677224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 20798677224 in words is "twenty billion, seven hundred ninety-eight million, six hundred seventy-seven thousand, two hundred twenty-four".