20804023696 has 45 divisors (see below), whose sum is σ = 40809119169. Its totient is φ = 10274218752.

The previous prime is 20804023693. The next prime is 20804023763. The reversal of 20804023696 is 69632040802.

The square root of 20804023696 is 144236.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5610010000 + 15194013696 = 74900^2 + 123264^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20804023693) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 61732840 + ... + 61733176.

Almost surely, 2^20804023696 is an apocalyptic number.

20804023696 is the 144236-th square number.

It is an amenable number.

20804023696 is a deficient number, since it is larger than the sum of its proper divisors (20005095473).

20804023696 is an frugal number, since it uses more digits than its factorization.

20804023696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 20804023696 in words is "twenty billion, eight hundred four million, twenty-three thousand, six hundred ninety-six".