20215304304005 has 16 divisors (see below), whose sum is σ = 24303921592320. Its totient is φ = 16141877285952.

The previous prime is 20215304303977. The next prime is 20215304304073. The reversal of 20215304304005 is 50040340351202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20215304304005 - 2⁶ = 20215304303941 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 34182332 + ... + 34768698.

It is an arithmetic number, because the mean of its divisors is an integer number (1518995099520).

Almost surely, 2^{20215304304005} is an apocalyptic number.

It is an amenable number.

20215304304005 is a deficient number, since it is larger than the sum of its proper divisors (4088617288315).

20215304304005 is a wasteful number, since it uses less digits than its factorization.

20215304304005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599308.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20215304304005 its reverse (50040340351202), we get a palindrome (70255644655207).

The spelling of 20215304304005 in words is "twenty trillion, two hundred fifteen billion, three hundred four million, three hundred four thousand, five".