20804336132 has 24 divisors (see below), whose sum is σ = 37322159616. Its totient is φ = 10143271008.

The previous prime is 20804336117. The next prime is 20804336141. The reversal of 20804336132 is 23163340802.

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, 266468 + ... + 335579.

It is an arithmetic number, because the mean of its divisors is an integer number (1555089984).

Almost surely, 2^20804336132 is an apocalyptic number.

It is an amenable number.

20804336132 is a deficient number, since it is larger than the sum of its proper divisors (16517823484).

20804336132 is a wasteful number, since it uses less digits than its factorization.

20804336132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602267 (or 602265 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 20804336132 its reverse (23163340802), we get a palindrome (43967676934).

The spelling of 20804336132 in words is "twenty billion, eight hundred four million, three hundred thirty-six thousand, one hundred thirty-two".