20982908943360 has 2464 divisors, whose sum is σ = 93698949603840. Its totient is φ = 4388393189376.

The previous prime is 20982908943323. The next prime is 20982908943421. The reversal of 20982908943360 is 6334980928902.

20982908943360 is a `hidden beast` number, since 2 + 0 + 9 + 8 + 290 + 8 + 9 + 4 + 336 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 55363875651 + ... + 55363876029.

Almost surely, 2^{20982908943360} is an apocalyptic number.

20982908943360 is a gapful number since it is divisible by the number (20) 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 20982908943360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46849474801920).

20982908943360 is an abundant number, since it is smaller than the sum of its proper divisors (72716040660480).

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

20982908943360 is a wasteful number, since it uses less digits than its factorization.

20982908943360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 20982908943360 in words is "twenty trillion, nine hundred eighty-two billion, nine hundred eight million, nine hundred forty-three thousand, three hundred sixty".