20816216711814 has 32 divisors (see below), whose sum is σ = 42026498316000. Its totient is φ = 6873098137344.

The previous prime is 20816216711789. The next prime is 20816216711893. The reversal of 20816216711814 is 41811761261802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318919 + ... + 6856370.

It is an arithmetic number, because the mean of its divisors is an integer number (1313328072375).

Almost surely, 2^{20816216711814} is an apocalyptic number.

20816216711814 is an abundant number, since it is smaller than the sum of its proper divisors (21210281604186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20816216711814 is a wasteful number, since it uses less digits than its factorization.

20816216711814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9178872.

The product of its (nonzero) digits is 258048, while the sum is 48.

The spelling of 20816216711814 in words is "twenty trillion, eight hundred sixteen billion, two hundred sixteen million, seven hundred eleven thousand, eight hundred fourteen".