20604107353 has 2 divisors, whose sum is σ = 20604107354. Its totient is φ = 20604107352.

The previous prime is 20604107333. The next prime is 20604107383. The reversal of 20604107353 is 35370140602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19374412864 + 1229694489 = 139192^2 + 35067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20604107353 is a prime.

It is not a weakly prime, because it can be changed into another prime (20604107333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10302053676 + 10302053677.

It is an arithmetic number, because the mean of its divisors is an integer number (10302053677).

Almost surely, 2^20604107353 is an apocalyptic number.

It is an amenable number.

20604107353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20604107353 is an equidigital number, since it uses as much as digits as its factorization.

20604107353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 20604107353 its reverse (35370140602), we get a palindrome (55974247955).

The spelling of 20604107353 in words is "twenty billion, six hundred four million, one hundred seven thousand, three hundred fifty-three".