20117132526527 has 4 divisors (see below), whose sum is σ = 20117189870016. Its totient is φ = 20117075183040.

The previous prime is 20117132526521. The next prime is 20117132526559. The reversal of 20117132526527 is 72562523171102.

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

It is a cyclic number.

It is not a de Polignac number, because 20117132526527 - 2¹⁴ = 20117132510143 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 (20117132526521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28142258 + ... + 28848239.

It is an arithmetic number, because the mean of its divisors is an integer number (5029297467504).

Almost surely, 2^{20117132526527} is an apocalyptic number.

20117132526527 is a deficient number, since it is larger than the sum of its proper divisors (57343489).

20117132526527 is an equidigital number, since it uses as much as digits as its factorization.

20117132526527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57343488.

The product of its (nonzero) digits is 352800, while the sum is 44.

Adding to 20117132526527 its reverse (72562523171102), we get a palindrome (92679655697629).

The spelling of 20117132526527 in words is "twenty trillion, one hundred seventeen billion, one hundred thirty-two million, five hundred twenty-six thousand, five hundred twenty-seven".