20061111732480 has 3888 divisors, whose sum is σ = 96236847645120. Its totient is φ = 3954971639808.

The previous prime is 20061111732463. The next prime is 20061111732491. The reversal of 20061111732480 is 8423711116002.

20061111732480 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 1 + 1 + 1 + 173 + 2 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (3888).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 431 ways as a sum of consecutive naturals, for example, 274809749724 + ... + 274809749796.

Almost surely, 2^{20061111732480} is an apocalyptic number.

20061111732480 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 20061111732480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48118423822560).

20061111732480 is an abundant number, since it is smaller than the sum of its proper divisors (76175735912640).

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

20061111732480 is an equidigital number, since it uses as much as digits as its factorization.

20061111732480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 20061111732480 its reverse (8423711116002), we get a palindrome (28484822848482).

The spelling of 20061111732480 in words is "twenty trillion, sixty-one billion, one hundred eleven million, seven hundred thirty-two thousand, four hundred eighty".