20869780607316 has 36 divisors (see below), whose sum is σ = 54708025709792. Its totient is φ = 6956593535448.

The previous prime is 20869780607303. The next prime is 20869780607317. The reversal of 20869780607316 is 61370608796802.

20869780607316 is a `hidden beast` number, since 2 + 0 + 8 + 6 + 9 + 7 + 8 + 0 + 607 + 3 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20869780607317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10735482880 + ... + 10735484823.

Almost surely, 2^{20869780607316} is an apocalyptic number.

It is an amenable number.

20869780607316 is an abundant number, since it is smaller than the sum of its proper divisors (33838245102476).

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

20869780607316 is a wasteful number, since it uses less digits than its factorization.

20869780607316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21470967722 (or 21470967708 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 20869780607316 in words is "twenty trillion, eight hundred sixty-nine billion, seven hundred eighty million, six hundred seven thousand, three hundred sixteen".