20836914996825 has 96 divisors (see below), whose sum is σ = 40297020825600. Its totient is φ = 10527029386560.

The previous prime is 20836914996809. The next prime is 20836914996881. The reversal of 20836914996825 is 52869941963802.

20836914996825 is a `hidden beast` number, since 20 + 8 + 3 + 6 + 91 + 499 + 6 + 8 + 25 = 666.

It is not a de Polignac number, because 20836914996825 - 2⁴ = 20836914996809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 131030512 + ... + 131189438.

It is an arithmetic number, because the mean of its divisors is an integer number (419760633600).

Almost surely, 2^{20836914996825} is an apocalyptic number.

20836914996825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20836914996825 is a deficient number, since it is larger than the sum of its proper divisors (19460105828775).

20836914996825 is a wasteful number, since it uses less digits than its factorization.

20836914996825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169188 (or 169177 counting only the distinct ones).

The product of its (nonzero) digits is 403107840, while the sum is 72.

The spelling of 20836914996825 in words is "twenty trillion, eight hundred thirty-six billion, nine hundred fourteen million, nine hundred ninety-six thousand, eight hundred twenty-five".