20005106736207 has 8 divisors (see below), whose sum is σ = 26918186434480. Its totient is φ = 13214382431040.

The previous prime is 20005106736193. The next prime is 20005106736257. The reversal of 20005106736207 is 70263760150002.

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

It is not a de Polignac number, because 20005106736207 - 2⁸ = 20005106735951 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 (20005106736257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30588847894 + ... + 30588848547.

It is an arithmetic number, because the mean of its divisors is an integer number (3364773304310).

Almost surely, 2^{20005106736207} is an apocalyptic number.

20005106736207 is a deficient number, since it is larger than the sum of its proper divisors (6913079698273).

20005106736207 is a wasteful number, since it uses less digits than its factorization.

20005106736207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61177696553.

The product of its (nonzero) digits is 105840, while the sum is 39.

Adding to 20005106736207 its reverse (70263760150002), we get a palindrome (90268866886209).

The spelling of 20005106736207 in words is "twenty trillion, five billion, one hundred six million, seven hundred thirty-six thousand, two hundred seven".