20773988352 has 576 divisors, whose sum is σ = 70951608000. Its totient is φ = 6055575552.

The previous prime is 20773988327. The next prime is 20773988377. The reversal of 20773988352 is 25388937702.

20773988352 is a `hidden beast` number, since 207 + 7 + 3 + 9 + 88 + 352 = 666.

It is an interprime number because it is at equal distance from previous prime (20773988327) and next prime (20773988377).

It is a tau number, because it is divible by the number of its divisors (576).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1093367799 + ... + 1093367817.

It is an arithmetic number, because the mean of its divisors is an integer number (123179875).

Almost surely, 2^20773988352 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 20773988352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35475804000).

20773988352 is an abundant number, since it is smaller than the sum of its proper divisors (50177619648).

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

20773988352 is an frugal number, since it uses more digits than its factorization.

20773988352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 37 counting only the distinct ones).

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

The spelling of 20773988352 in words is "twenty billion, seven hundred seventy-three million, nine hundred eighty-eight thousand, three hundred fifty-two".