20410521145205 has 16 divisors (see below), whose sum is σ = 25821001753344. Its totient is φ = 15457470420480.

The previous prime is 20410521145177. The next prime is 20410521145211. The reversal of 20410521145205 is 50254112501402.

It is not a de Polignac number, because 20410521145205 - 2⁶ = 20410521145141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914848601 + ... + 914870910.

It is an arithmetic number, because the mean of its divisors is an integer number (1613812609584).

Almost surely, 2^{20410521145205} is an apocalyptic number.

It is an amenable number.

20410521145205 is a deficient number, since it is larger than the sum of its proper divisors (5410480608139).

20410521145205 is a wasteful number, since it uses less digits than its factorization.

20410521145205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829719636.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 20410521145205 its reverse (50254112501402), we get a palindrome (70664633646607).

The spelling of 20410521145205 in words is "twenty trillion, four hundred ten billion, five hundred twenty-one million, one hundred forty-five thousand, two hundred five".