20060025891840 has 2112 divisors, whose sum is σ = 80899129479168. Its totient is φ = 4725419212800.

The previous prime is 20060025891827. The next prime is 20060025891859. The reversal of 20060025891840 is 4819852006002.

20060025891840 is a `hidden beast` number, since 2 + 0 + 0 + 60 + 0 + 2 + 589 + 1 + 8 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2112).

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 191 ways as a sum of consecutive naturals, for example, 120119915437 + ... + 120119915603.

It is an arithmetic number, because the mean of its divisors is an integer number (38304512064).

Almost surely, 2^{20060025891840} is an apocalyptic number.

20060025891840 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 20060025891840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40449564739584).

20060025891840 is an abundant number, since it is smaller than the sum of its proper divisors (60839103587328).

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

20060025891840 is a wasteful number, since it uses less digits than its factorization.

20060025891840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

Adding to 20060025891840 its reverse (4819852006002), we get a palindrome (24879877897842).

The spelling of 20060025891840 in words is "twenty trillion, sixty billion, twenty-five million, eight hundred ninety-one thousand, eight hundred forty".