2040420220417 has 2 divisors, whose sum is σ = 2040420220418. Its totient is φ = 2040420220416.

The previous prime is 2040420220409. The next prime is 2040420220439. The reversal of 2040420220417 is 7140220240402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2002066523136 + 38353697281 = 1414944^2 + 195841^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040420220417 - 2³ = 2040420220409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2040420220717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020210110208 + 1020210110209.

It is an arithmetic number, because the mean of its divisors is an integer number (1020210110209).

Almost surely, 2^{2040420220417} is an apocalyptic number.

It is an amenable number.

2040420220417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040420220417 is an equidigital number, since it uses as much as digits as its factorization.

2040420220417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 28.

Adding to 2040420220417 its reverse (7140220240402), we get a palindrome (9180640460819).

The spelling of 2040420220417 in words is "two trillion, forty billion, four hundred twenty million, two hundred twenty thousand, four hundred seventeen".