20413345507 has 2 divisors, whose sum is σ = 20413345508. Its totient is φ = 20413345506.

The previous prime is 20413345489. The next prime is 20413345553. The reversal of 20413345507 is 70554331402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20413345507 is a prime.

It is not a weakly prime, because it can be changed into another prime (20413345207) by changing a digit.

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 as a sum of consecutive naturals, namely, 10206672753 + 10206672754.

It is an arithmetic number, because the mean of its divisors is an integer number (10206672754).

Almost surely, 2^20413345507 is an apocalyptic number.

20413345507 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413345507 is an equidigital number, since it uses as much as digits as its factorization.

20413345507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 20413345507 its reverse (70554331402), we get a palindrome (90967676909).

The spelling of 20413345507 in words is "twenty billion, four hundred thirteen million, three hundred forty-five thousand, five hundred seven".