20033475197 has 4 divisors (see below), whose sum is σ = 20068195836. Its totient is φ = 19998754560.

The previous prime is 20033475179. The next prime is 20033475229. The reversal of 20033475197 is 79157433002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18232830841 + 1800644356 = 135029^2 + 42434^2 .

It is a cyclic number.

It is not a de Polignac number, because 20033475197 - 2¹⁰ = 20033474173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033475107) 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 in 3 ways as a sum of consecutive naturals, for example, 17359454 + ... + 17360607.

It is an arithmetic number, because the mean of its divisors is an integer number (5017048959).

Almost surely, 2^20033475197 is an apocalyptic number.

It is an amenable number.

20033475197 is a deficient number, since it is larger than the sum of its proper divisors (34720639).

20033475197 is an equidigital number, since it uses as much as digits as its factorization.

20033475197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34720638.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 20033475197 in words is "twenty billion, thirty-three million, four hundred seventy-five thousand, one hundred ninety-seven".