20501160206216 has 8 divisors (see below), whose sum is σ = 38439675386670. Its totient is φ = 10250580103104.

The previous prime is 20501160206213. The next prime is 20501160206249. The reversal of 20501160206216 is 61260206110502.

It can be written as a sum of positive squares in only one way, i.e., 19012687005316 + 1488473200900 = 4360354^2 + 1220030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20501160206213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281322512881 + ... + 1281322512896.

Almost surely, 2^{20501160206216} is an apocalyptic number.

It is an amenable number.

20501160206216 is a deficient number, since it is larger than the sum of its proper divisors (17938515180454).

20501160206216 is a wasteful number, since it uses less digits than its factorization.

20501160206216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562645025783 (or 2562645025779 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 20501160206216 its reverse (61260206110502), we get a palindrome (81761366316718).

The spelling of 20501160206216 in words is "twenty trillion, five hundred one billion, one hundred sixty million, two hundred six thousand, two hundred sixteen".