20764008788336 has 60 divisors (see below), whose sum is σ = 44300888868936. Its totient is φ = 9420930879360.

The previous prime is 20764008788293. The next prime is 20764008788417. The reversal of 20764008788336 is 63388780046702.

It is a super-2 number, since 2×20764008788336² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8744675 + ... + 10862658.

Almost surely, 2^{20764008788336} is an apocalyptic number.

It is an amenable number.

20764008788336 is an abundant number, since it is smaller than the sum of its proper divisors (23536880080600).

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

20764008788336 is a wasteful number, since it uses less digits than its factorization.

20764008788336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19607910 (or 19607893 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 62.

The spelling of 20764008788336 in words is "twenty trillion, seven hundred sixty-four billion, eight million, seven hundred eighty-eight thousand, three hundred thirty-six".