20415104320135 has 32 divisors (see below), whose sum is σ = 28612236367872. Its totient is φ = 13692128336640.

The previous prime is 20415104320099. The next prime is 20415104320147. The reversal of 20415104320135 is 53102340151402.

It is not a de Polignac number, because 20415104320135 - 2¹¹ = 20415104318087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20415104320097 and 20415104320106.

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, 1534542 + ... + 6571531.

It is an arithmetic number, because the mean of its divisors is an integer number (894132386496).

Almost surely, 2^{20415104320135} is an apocalyptic number.

20415104320135 is a deficient number, since it is larger than the sum of its proper divisors (8197132047737).

20415104320135 is a wasteful number, since it uses less digits than its factorization.

20415104320135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107663.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 20415104320135 its reverse (53102340151402), we get a palindrome (73517444471537).

The spelling of 20415104320135 in words is "twenty trillion, four hundred fifteen billion, one hundred four million, three hundred twenty thousand, one hundred thirty-five".