20069484284520 has 640 divisors, whose sum is σ = 77933888778240. Its totient is φ = 4584321308160.

The previous prime is 20069484284519. The next prime is 20069484284557. The reversal of 20069484284520 is 2548248496002.

20069484284520 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 94 + 8 + 4 + 28 + 4 + 520 = 666.

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 (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 54738529 + ... + 55103951.

It is an arithmetic number, because the mean of its divisors is an integer number (121771701216).

Almost surely, 2^{20069484284520} is an apocalyptic number.

20069484284520 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 20069484284520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38966944389120).

20069484284520 is an abundant number, since it is smaller than the sum of its proper divisors (57864404493720).

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

20069484284520 is a wasteful number, since it uses less digits than its factorization.

20069484284520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365547 (or 365534 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 20069484284520 in words is "twenty trillion, sixty-nine billion, four hundred eighty-four million, two hundred eighty-four thousand, five hundred twenty".