20043413522405 has 16 divisors (see below), whose sum is σ = 29602579972224. Its totient is φ = 12686819987520.

The previous prime is 20043413522381. The next prime is 20043413522411. The reversal of 20043413522405 is 50422531434002.

It is a happy number.

It is not a de Polignac number, because 20043413522405 - 2¹⁸ = 20043413260261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22025728691 + ... + 22025729600.

It is an arithmetic number, because the mean of its divisors is an integer number (1850161248264).

Almost surely, 2^{20043413522405} is an apocalyptic number.

It is an amenable number.

20043413522405 is a deficient number, since it is larger than the sum of its proper divisors (9559166449819).

20043413522405 is a wasteful number, since it uses less digits than its factorization.

20043413522405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44051458316.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 20043413522405 its reverse (50422531434002), we get a palindrome (70465944956407).

The spelling of 20043413522405 in words is "twenty trillion, forty-three billion, four hundred thirteen million, five hundred twenty-two thousand, four hundred five".