20007536704 has 21 divisors (see below), whose sum is σ = 39704701261. Its totient is φ = 10003202560.

The previous prime is 20007536699. The next prime is 20007536713. The reversal of 20007536704 is 40763570002.

It is a happy number.

The square root of 20007536704 is 141448.

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., 5453527104 + 14554009600 = 73848^2 + 120640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20007536704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1122744 + ... + 1140424.

Almost surely, 2^20007536704 is an apocalyptic number.

20007536704 is the 141448-th square number.

It is an amenable number.

20007536704 is a deficient number, since it is larger than the sum of its proper divisors (19697164557).

20007536704 is an frugal number, since it uses more digits than its factorization.

20007536704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35374 (or 17683 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 20007536704 in words is "twenty billion, seven million, five hundred thirty-six thousand, seven hundred four".