20132663 has 4 divisors (see below), whose sum is σ = 20223168. Its totient is φ = 20042160.

The previous prime is 20132639. The next prime is 20132683. The reversal of 20132663 is 36623102.

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 20132663 - 2⁸ = 20132407 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132603) 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, 44918 + ... + 45363.

It is an arithmetic number, because the mean of its divisors is an integer number (5055792).

Almost surely, 2^20132663 is an apocalyptic number.

20132663 is a deficient number, since it is larger than the sum of its proper divisors (90505).

20132663 is an equidigital number, since it uses as much as digits as its factorization.

20132663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90504.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20132663 is about 4486.9436145332. The cubic root of 20132663 is about 272.0406108265.

Adding to 20132663 its reverse (36623102), we get a palindrome (56755765).

The spelling of 20132663 in words is "twenty million, one hundred thirty-two thousand, six hundred sixty-three".