20328776516 has 12 divisors (see below), whose sum is σ = 36076420800. Its totient is φ = 10021227720.

The previous prime is 20328776471. The next prime is 20328776537. The reversal of 20328776516 is 61567782302.

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, 35789816 + ... + 35790383.

It is an arithmetic number, because the mean of its divisors is an integer number (3006368400).

Almost surely, 2^20328776516 is an apocalyptic number.

It is an amenable number.

20328776516 is a deficient number, since it is larger than the sum of its proper divisors (15747644284).

20328776516 is a wasteful number, since it uses less digits than its factorization.

20328776516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71580274 (or 71580272 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 20328776516 in words is "twenty billion, three hundred twenty-eight million, seven hundred seventy-six thousand, five hundred sixteen".