20201174517 has 8 divisors (see below), whose sum is σ = 27042210720. Its totient is φ = 13413794000.

The previous prime is 20201174503. The next prime is 20201174537. The reversal of 20201174517 is 71547110202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201174517 - 2²⁰ = 20200125941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201174537) 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 in 7 ways as a sum of consecutive naturals, for example, 13413042 + ... + 13414547.

It is an arithmetic number, because the mean of its divisors is an integer number (3380276340).

Almost surely, 2^20201174517 is an apocalyptic number.

It is an amenable number.

20201174517 is a deficient number, since it is larger than the sum of its proper divisors (6841036203).

20201174517 is a wasteful number, since it uses less digits than its factorization.

20201174517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26827843.

The product of its (nonzero) digits is 3920, while the sum is 30.

Adding to 20201174517 its reverse (71547110202), we get a palindrome (91748284719).

The spelling of 20201174517 in words is "twenty billion, two hundred one million, one hundred seventy-four thousand, five hundred seventeen".