20016720002606 has 16 divisors (see below), whose sum is σ = 30240872363520. Its totient is φ = 9936572078040.

The previous prime is 20016720002567. The next prime is 20016720002627. The reversal of 20016720002606 is 60620002761002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35435090 + ... + 35995541.

It is an arithmetic number, because the mean of its divisors is an integer number (1890054522720).

Almost surely, 2^{20016720002606} is an apocalyptic number.

20016720002606 is a deficient number, since it is larger than the sum of its proper divisors (10224152360914).

20016720002606 is a wasteful number, since it uses less digits than its factorization.

20016720002606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71431639.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 20016720002606 its reverse (60620002761002), we get a palindrome (80636722763608).

The spelling of 20016720002606 in words is "twenty trillion, sixteen billion, seven hundred twenty million, two thousand, six hundred six".