20045543411 has 2 divisors, whose sum is σ = 20045543412. Its totient is φ = 20045543410.

The previous prime is 20045543383. The next prime is 20045543449. The reversal of 20045543411 is 11434554002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20045543411 is a prime.

It is not a weakly prime, because it can be changed into another prime (20045543471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022771705 + 10022771706.

It is an arithmetic number, because the mean of its divisors is an integer number (10022771706).

Almost surely, 2^20045543411 is an apocalyptic number.

20045543411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045543411 is an equidigital number, since it uses as much as digits as its factorization.

20045543411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 20045543411 in words is "twenty billion, forty-five million, five hundred forty-three thousand, four hundred eleven".