20852816056 has 16 divisors (see below), whose sum is σ = 39538346400. Its totient is φ = 10309257024.

The previous prime is 20852816053. The next prime is 20852816059. The reversal of 20852816056 is 65061825802.

It is an interprime number because it is at equal distance from previous prime (20852816053) and next prime (20852816059).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852816053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14643120 + ... + 14644543.

It is an arithmetic number, because the mean of its divisors is an integer number (2471146650).

Almost surely, 2^20852816056 is an apocalyptic number.

It is an amenable number.

20852816056 is a deficient number, since it is larger than the sum of its proper divisors (18685530344).

20852816056 is a wasteful number, since it uses less digits than its factorization.

20852816056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29287758 (or 29287754 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 20852816056 in words is "twenty billion, eight hundred fifty-two million, eight hundred sixteen thousand, fifty-six".