20078716708 has 12 divisors (see below), whose sum is σ = 35197012620. Its totient is φ = 10022427392.

The previous prime is 20078716687. The next prime is 20078716727. The reversal of 20078716708 is 80761787002.

It can be written as a sum of positive squares in 2 ways, for example, as 13373072164 + 6705644544 = 115642^2 + 81888^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4230073 + ... + 4234816.

It is an arithmetic number, because the mean of its divisors is an integer number (2933084385).

Almost surely, 2^20078716708 is an apocalyptic number.

It is an amenable number.

20078716708 is a deficient number, since it is larger than the sum of its proper divisors (15118295912).

20078716708 is a wasteful number, since it uses less digits than its factorization.

20078716708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8465486 (or 8465484 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 20078716708 in words is "twenty billion, seventy-eight million, seven hundred sixteen thousand, seven hundred eight".