20404325515005 has 32 divisors (see below), whose sum is σ = 36496898574720. Its totient is φ = 10815544310400.

The previous prime is 20404325514977. The next prime is 20404325515121. The reversal of 20404325515005 is 50051552340402.

20404325515005 is a `hidden beast` number, since 2 + 0 + 40 + 43 + 25 + 51 + 500 + 5 = 666.

It is not a de Polignac number, because 20404325515005 - 2⁶ = 20404325514941 is a prime.

It is a super-3 number, since 3×20404325515005³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463607296 + ... + 463651305.

It is an arithmetic number, because the mean of its divisors is an integer number (1140528080460).

Almost surely, 2^{20404325515005} is an apocalyptic number.

It is an amenable number.

20404325515005 is a deficient number, since it is larger than the sum of its proper divisors (16092573059715).

20404325515005 is a wasteful number, since it uses less digits than its factorization.

20404325515005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927258778 (or 927258772 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 20404325515005 its reverse (50051552340402), we get a palindrome (70455877855407).

The spelling of 20404325515005 in words is "twenty trillion, four hundred four billion, three hundred twenty-five million, five hundred fifteen thousand, five".