20668196876112 has 120 divisors (see below), whose sum is σ = 59255035513128. Its totient is φ = 6721137561600.

The previous prime is 20668196876101. The next prime is 20668196876137. The reversal of 20668196876112 is 21167869186602.

20668196876112 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 8 + 1 + 9 + 6 + 8 + 7 + 611 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1605856666176 + 19062340209936 = 1267224^2 + 4366044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20668196876112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340282098 + ... + 340342830.

Almost surely, 2^{20668196876112} is an apocalyptic number.

It is an amenable number.

20668196876112 is an abundant number, since it is smaller than the sum of its proper divisors (38586838637016).

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

20668196876112 is a wasteful number, since it uses less digits than its factorization.

20668196876112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118429 (or 118420 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 20668196876112 in words is "twenty trillion, six hundred sixty-eight billion, one hundred ninety-six million, eight hundred seventy-six thousand, one hundred twelve".