20345030604615 has 16 divisors (see below), whose sum is σ = 32759386862688. Its totient is φ = 10781570357376.

The previous prime is 20345030604593. The next prime is 20345030604649. The reversal of 20345030604615 is 51640603054302.

It is not a de Polignac number, because 20345030604615 - 2⁹ = 20345030604103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4319537052 + ... + 4319541761.

It is an arithmetic number, because the mean of its divisors is an integer number (2047461678918).

Almost surely, 2^{20345030604615} is an apocalyptic number.

20345030604615 is a deficient number, since it is larger than the sum of its proper divisors (12414356258073).

20345030604615 is a wasteful number, since it uses less digits than its factorization.

20345030604615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8639078978.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 20345030604615 its reverse (51640603054302), we get a palindrome (71985633658917).

The spelling of 20345030604615 in words is "twenty trillion, three hundred forty-five billion, thirty million, six hundred four thousand, six hundred fifteen".