20078716716 has 36 divisors (see below), whose sum is σ = 53425827000. Its totient is φ = 6340647168.

The previous prime is 20078716687. The next prime is 20078716727. The reversal of 20078716716 is 61761787002.

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

It is a super-2 number, since 2×20078716716² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14676741 + ... + 14678108.

It is an arithmetic number, because the mean of its divisors is an integer number (1484050750).

Almost surely, 2^20078716716 is an apocalyptic number.

It is an amenable number.

20078716716 is an abundant number, since it is smaller than the sum of its proper divisors (33347110284).

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

20078716716 is a wasteful number, since it uses less digits than its factorization.

20078716716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29354878 (or 29354873 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 20078716716 in words is "twenty billion, seventy-eight million, seven hundred sixteen thousand, seven hundred sixteen".