20017506443041 has 2 divisors, whose sum is σ = 20017506443042. Its totient is φ = 20017506443040.

The previous prime is 20017506443023. The next prime is 20017506443107. The reversal of 20017506443041 is 14034460571002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15135523393600 + 4881983049441 = 3890440^2 + 2209521^2 .

It is a cyclic number.

It is not a de Polignac number, because 20017506443041 - 2²⁷ = 20017372225313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20017506443941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10008753221520 + 10008753221521.

It is an arithmetic number, because the mean of its divisors is an integer number (10008753221521).

Almost surely, 2^{20017506443041} is an apocalyptic number.

It is an amenable number.

20017506443041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20017506443041 is an equidigital number, since it uses as much as digits as its factorization.

20017506443041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 20017506443041 in words is "twenty trillion, seventeen billion, five hundred six million, four hundred forty-three thousand, forty-one".