20413514215597 has 2 divisors, whose sum is σ = 20413514215598. Its totient is φ = 20413514215596.

The previous prime is 20413514215537. The next prime is 20413514215607. The reversal of 20413514215597 is 79551241531402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13900228346601 + 6513285868996 = 3728301^2 + 2552114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20413514215597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20413514215597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413514215537) 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, 10206757107798 + 10206757107799.

It is an arithmetic number, because the mean of its divisors is an integer number (10206757107799).

Almost surely, 2^{20413514215597} is an apocalyptic number.

It is an amenable number.

20413514215597 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413514215597 is an equidigital number, since it uses as much as digits as its factorization.

20413514215597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 49.

Adding to 20413514215597 its reverse (79551241531402), we get a palindrome (99964755746999).

The spelling of 20413514215597 in words is "twenty trillion, four hundred thirteen billion, five hundred fourteen million, two hundred fifteen thousand, five hundred ninety-seven".