20827453365776 has 20 divisors (see below), whose sum is σ = 40378208423532. Its totient is φ = 10407270546816.

The previous prime is 20827453365773. The next prime is 20827453365793. The reversal of 20827453365776 is 67756335472802.

It can be written as a sum of positive squares in 2 ways, for example, as 4040405525776 + 16787047840000 = 2010076^2 + 4097200^2 .

It is not an unprimeable number, because it can be changed into a prime (20827453365773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403481891 + ... + 403533506.

Almost surely, 2^{20827453365776} is an apocalyptic number.

It is an amenable number.

20827453365776 is a deficient number, since it is larger than the sum of its proper divisors (19550755057756).

20827453365776 is a wasteful number, since it uses less digits than its factorization.

20827453365776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807017018 (or 807017012 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 65.

The spelling of 20827453365776 in words is "twenty trillion, eight hundred twenty-seven billion, four hundred fifty-three million, three hundred sixty-five thousand, seven hundred seventy-six".