20636014051 has 4 divisors (see below), whose sum is σ = 20636744512. Its totient is φ = 20635283592.

The previous prime is 20636014027. The next prime is 20636014081. The reversal of 20636014051 is 15041063602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15041063602 = 2 ⋅7520531801.

It is a cyclic number.

It is not a de Polignac number, because 20636014051 - 2⁹ = 20636013539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20636014081) 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, 321075 + ... + 379948.

It is an arithmetic number, because the mean of its divisors is an integer number (5159186128).

Almost surely, 2^20636014051 is an apocalyptic number.

20636014051 is a deficient number, since it is larger than the sum of its proper divisors (730461).

20636014051 is an equidigital number, since it uses as much as digits as its factorization.

20636014051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730460.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 20636014051 its reverse (15041063602), we get a palindrome (35677077653).

The spelling of 20636014051 in words is "twenty billion, six hundred thirty-six million, fourteen thousand, fifty-one".