20200198973653 has 2 divisors, whose sum is σ = 20200198973654. Its totient is φ = 20200198973652.

The previous prime is 20200198973651. The next prime is 20200198973693. The reversal of 20200198973653 is 35637989100202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14024740381444 + 6175458592209 = 3744962^2 + 2485047^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200198973653 - 2¹ = 20200198973651 is a prime.

Together with 20200198973651, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20200198973594 and 20200198973603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200198973651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100099486826 + 10100099486827.

It is an arithmetic number, because the mean of its divisors is an integer number (10100099486827).

Almost surely, 2^{20200198973653} is an apocalyptic number.

It is an amenable number.

20200198973653 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200198973653 is an equidigital number, since it uses as much as digits as its factorization.

20200198973653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 20200198973653 in words is "twenty trillion, two hundred billion, one hundred ninety-eight million, nine hundred seventy-three thousand, six hundred fifty-three".