20043520247880 has 192 divisors, whose sum is σ = 66215335680000. Its totient is φ = 5257520875008.

The previous prime is 20043520247857. The next prime is 20043520247899. The reversal of 20043520247880 is 8874202534002.

20043520247880 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 3 + 520 + 2 + 47 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 3711001 + ... + 7338839.

It is an arithmetic number, because the mean of its divisors is an integer number (344871540000).

Almost surely, 2^{20043520247880} is an apocalyptic number.

20043520247880 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 20043520247880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33107667840000).

20043520247880 is an abundant number, since it is smaller than the sum of its proper divisors (46171815432120).

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

20043520247880 is a wasteful number, since it uses less digits than its factorization.

20043520247880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628108 (or 3628101 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 20043520247880 in words is "twenty trillion, forty-three billion, five hundred twenty million, two hundred forty-seven thousand, eight hundred eighty".