20413504241205 has 32 divisors (see below), whose sum is σ = 32694042230784. Its totient is φ = 10876391927616.

The previous prime is 20413504241161. The next prime is 20413504241269. The reversal of 20413504241205 is 50214240531402.

It is not a de Polignac number, because 20413504241205 - 2¹⁵ = 20413504208437 is a prime.

It is a super-2 number, since 2×20413504241205² (a number of 27 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 273283372 + ... + 273358058.

It is an arithmetic number, because the mean of its divisors is an integer number (1021688819712).

Almost surely, 2^{20413504241205} is an apocalyptic number.

It is an amenable number.

20413504241205 is a deficient number, since it is larger than the sum of its proper divisors (12280537989579).

20413504241205 is a wasteful number, since it uses less digits than its factorization.

20413504241205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92545.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 20413504241205 its reverse (50214240531402), we get a palindrome (70627744772607).

The spelling of 20413504241205 in words is "twenty trillion, four hundred thirteen billion, five hundred four million, two hundred forty-one thousand, two hundred five".