20001840041 has 4 divisors (see below), whose sum is σ = 20102352000. Its totient is φ = 19901328084.

The previous prime is 20001840029. The next prime is 20001840043. The reversal of 20001840041 is 14004810002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20001840041 - 2²⁶ = 19934731177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001839995 and 20001840022.

It is not an unprimeable number, because it can be changed into a prime (20001840043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50255681 + ... + 50256078.

It is an arithmetic number, because the mean of its divisors is an integer number (5025588000).

Almost surely, 2^20001840041 is an apocalyptic number.

It is an amenable number.

20001840041 is a deficient number, since it is larger than the sum of its proper divisors (100511959).

20001840041 is a wasteful number, since it uses less digits than its factorization.

20001840041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100511958.

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 20001840041 in words is "twenty billion, one million, eight hundred forty thousand, forty-one".