20055007042740 has 288 divisors, whose sum is σ = 66461285130240. Its totient is φ = 5062383619200.

The previous prime is 20055007042711. The next prime is 20055007042771. The reversal of 20055007042740 is 4724070055002.

It is a happy number.

20055007042740 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 500 + 70 + 42 + 7 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20055007042695 and 20055007042704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 113582325 + ... + 113758755.

Almost surely, 2^{20055007042740} is an apocalyptic number.

20055007042740 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 20055007042740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33230642565120).

20055007042740 is an abundant number, since it is smaller than the sum of its proper divisors (46406278087500).

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

20055007042740 is a wasteful number, since it uses less digits than its factorization.

20055007042740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177705 (or 177691 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

Adding to 20055007042740 its reverse (4724070055002), we get a palindrome (24779077097742).

The spelling of 20055007042740 in words is "twenty trillion, fifty-five billion, seven million, forty-two thousand, seven hundred forty".