1605422050401 has 16 divisors (see below), whose sum is σ = 2309646044160. Its totient is φ = 986055757440.

The previous prime is 1605422050369. The next prime is 1605422050471. The reversal of 1605422050401 is 1040502245061.

It is not a de Polignac number, because 1605422050401 - 2⁵ = 1605422050369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1605422050471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39485121 + ... + 39525758.

It is an arithmetic number, because the mean of its divisors is an integer number (144352877760).

Almost surely, 2^{1605422050401} is an apocalyptic number.

It is an amenable number.

1605422050401 is a deficient number, since it is larger than the sum of its proper divisors (704223993759).

1605422050401 is a wasteful number, since it uses less digits than its factorization.

1605422050401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79011416.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1605422050401 its reverse (1040502245061), we get a palindrome (2645924295462).

The spelling of 1605422050401 in words is "one trillion, six hundred five billion, four hundred twenty-two million, fifty thousand, four hundred one".