20704756514 has 16 divisors (see below), whose sum is σ = 33560308152. Its totient is φ = 9523423488.

The previous prime is 20704756493. The next prime is 20704756571. The reversal of 20704756514 is 41565740702.

It can be written as a sum of positive squares in 4 ways, for example, as 20273488225 + 431268289 = 142385^2 + 20767^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351319 + ... + 1366554.

Almost surely, 2^20704756514 is an apocalyptic number.

20704756514 is a deficient number, since it is larger than the sum of its proper divisors (12855551638).

20704756514 is a wasteful number, since it uses less digits than its factorization.

20704756514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718181.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 20704756514 in words is "twenty billion, seven hundred four million, seven hundred fifty-six thousand, five hundred fourteen".