20216775026682 has 192 divisors, whose sum is σ = 50455802517120. Its totient is φ = 5798344476672.

The previous prime is 20216775026629. The next prime is 20216775026687. The reversal of 20216775026682 is 28662057761202.

20216775026682 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 6 + 77 + 502 + 6 + 68 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (20216775026687) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 255245278 + ... + 255324470.

It is an arithmetic number, because the mean of its divisors is an integer number (262790638110).

Almost surely, 2^{20216775026682} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20216775026682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25227901258560).

20216775026682 is an abundant number, since it is smaller than the sum of its proper divisors (30239027490438).

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

20216775026682 is a wasteful number, since it uses less digits than its factorization.

20216775026682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80157 (or 80154 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 20216775026682 in words is "twenty trillion, two hundred sixteen billion, seven hundred seventy-five million, twenty-six thousand, six hundred eighty-two".