13601220653 has 2 divisors, whose sum is σ = 13601220654. Its totient is φ = 13601220652.

The previous prime is 13601220641. The next prime is 13601220697. The reversal of 13601220653 is 35602210631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7704977284 + 5896243369 = 87778^2 + 76787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13601220653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13601223653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6800610326 + 6800610327.

It is an arithmetic number, because the mean of its divisors is an integer number (6800610327).

Almost surely, 2^13601220653 is an apocalyptic number.

It is an amenable number.

13601220653 is a deficient number, since it is larger than the sum of its proper divisors (1).

13601220653 is an equidigital number, since it uses as much as digits as its factorization.

13601220653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 13601220653 in words is "thirteen billion, six hundred one million, two hundred twenty thousand, six hundred fifty-three".